{"title":"Aqua Master Tools","description":"\u003cdiv class=\"tgg\" style=\"font-family:'DM Sans',sans-serif;max-width:860px;margin:0 auto;color:#222;line-height:1.65;\"\u003e\n\n  \u003c!-- Badge --\u003e\n  \u003cdiv class=\"tgg-badge\" style=\"display:inline-block;background:#e8f5e9;color:#2e7d32;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:5px 12px;border-radius:20px;margin-bottom:18px;\"\u003epH, EC \u0026amp; Temperature Testing • Dutch Engineering\u003c\/div\u003e\n\n  \u003c!-- H1 --\u003e\n  \u003ch1 style=\"font-size:2rem;font-weight:800;line-height:1.2;margin:0 0 18px;\"\u003eAqua Master Tools — Precision pH \u0026amp; EC Meters Built for Serious Growers\u003c\/h1\u003e\n\n  \u003c!-- Opening paragraph --\u003e\n  \u003cp style=\"font-size:1.05rem;margin:0 0 28px;\"\u003eIf you've ever chased a nutrient lockout for a week only to realise your pH pen was out of calibration, you know exactly why a reliable meter matters. Aqua Master Tools is a Dutch testing brand that launched in 2018 with one clear goal — build measuring instruments that are accurate, built tough, and actually affordable. No bloat, no gimmicks. We stock their pH meters, EC\/conductivity meters, temperature meters and calibration fluids here at The Grow Guys because they work, and because growers across Australia keep coming back for them.\u003c\/p\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- Why growers rate section --\u003e\n  \u003cp class=\"tgg-lbl\" style=\"font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#888;margin:0 0 14px;\"\u003eWhy Growers Rate Aqua Master Tools\u003c\/p\u003e\n\n  \u003cdiv class=\"tgg-bg\" style=\"display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:28px;\"\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eDesigned in the Netherlands\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eEvery meter is designed and developed in-house in the Netherlands — not sourced from a generic factory catalogue. That means the product you get was actually engineered for growers, not just relabelled.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eAccuracy Without the Premium Price Tag\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eAqua Master was built on the idea that precision shouldn't cost a fortune. Their meters compete head-to-head with pricier brands on accuracy, while keeping the entry point accessible for hobbyists and commercial growers alike.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eBuilt to Handle Real Growing Environments\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eGrow rooms are wet, humid, and hard on gear. Aqua Master uses strong materials throughout their range — these aren't desk instruments, they're built for daily use in the conditions you're actually working in.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eGrower Feedback Built Into Every Update\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eAqua Master stays in direct contact with end users and feeds that feedback into every new product iteration — from the initial 3D sketch right through to mass production. If something doesn't work for growers, they fix it.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eFull Calibration Fluid Range Included\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eA meter is only as reliable as its last calibration. Aqua Master produces their own calibration and storage fluids to match their meters — so you're not guessing at compatibility or hunting down third-party solutions.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"benefit-card\" style=\"background:#f9f9f9;border:1px solid #ebebeb;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv class=\"bc-title\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eAvailable Australia-Wide Through The Grow Guys\u003c\/div\u003e\n      \u003cdiv class=\"bc-desc\" style=\"font-size:.9rem;color:#444;\"\u003eAs one of Australia's stockists for Aqua Master Tools, we carry the core range and ship it to your door anywhere in the country. Free shipping on orders over $499, and we actually know how to use what we sell.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- Brand Story --\u003e\n  \u003cp class=\"tgg-lbl\" style=\"font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#888;margin:0 0 14px;\"\u003eThe Aqua Master Story\u003c\/p\u003e\n\n  \u003cp style=\"font-size:1rem;margin:0 0 16px;\"\u003eAqua Master Tools came out of decades of hands-on experience with measuring instruments — the kind of experience that teaches you exactly where most meters fall short. In 2018, that knowledge became a brand. Founded in the Netherlands with a simple premise: growers deserve tools that are convenient, accurate, and priced for real people — not just labs and commercial operations with unlimited budgets.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:1rem;margin:0 0 16px;\"\u003eWhat sets them apart from the flood of cheaper meters on the market is that everything is genuinely designed in-house. From the first 3D sketch to the final production run, Aqua Master oversees the entire process at their Netherlands base. They're not rebranding whatever's cheapest to source — they're engineering specific solutions based on direct feedback from the growers using their gear in real grows, day in and day out.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:1rem;margin:0 0 28px;\"\u003eSince 2018 they've expanded their range significantly — pH meters, EC meters, temperature meters, combo units, and a full calibration fluid lineup — and distribution now spans the globe. In Australia, you'll find them here at The Grow Guys. A young, innovative company that's grown fast because the gear actually delivers. That's the kind of brand worth stocking.\u003c\/p\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- What Aqua Master Makes --\u003e\n  \u003cp class=\"tgg-lbl\" style=\"font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#888;margin:0 0 14px;\"\u003eWhat Aqua Master Tools Makes\u003c\/p\u003e\n\n  \u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:28px;\"\u003e\n\n    \u003ca href=\"\/collections\/meters-pens-ph-ec-testing\" class=\"pair-card\" style=\"display:flex;align-items:center;justify-content:space-between;background:#f4f9f4;border:1px solid #c8e6c9;border-radius:8px;padding:16px 18px;text-decoration:none;\"\u003e\n      \u003cdiv class=\"pc\"\u003e\n        \u003cdiv style=\"font-weight:700;color:#2e7d32;font-size:.95rem;margin-bottom:3px;\"\u003epH \u0026amp; EC Meters\u003c\/div\u003e\n        \u003cdiv style=\"font-size:.85rem;color:#444;\"\u003eHandheld pens and combo units for daily nutrient solution testing\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pa\" style=\"color:#2e7d32;font-size:1.2rem;margin-left:12px;\"\u003e→\u003c\/div\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/collections\/ph-control-calibration-ph-ec\" class=\"pair-card\" style=\"display:flex;align-items:center;justify-content:space-between;background:#f4f9f4;border:1px solid #c8e6c9;border-radius:8px;padding:16px 18px;text-decoration:none;\"\u003e\n      \u003cdiv class=\"pc\"\u003e\n        \u003cdiv style=\"font-weight:700;color:#2e7d32;font-size:.95rem;margin-bottom:3px;\"\u003eCalibration \u0026amp; pH Control\u003c\/div\u003e\n        \u003cdiv style=\"font-size:.85rem;color:#444;\"\u003eCalibration fluids, pH up\/down, and storage solutions\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pa\" style=\"color:#2e7d32;font-size:1.2rem;margin-left:12px;\"\u003e→\u003c\/div\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/collections\/environment-controllers\" class=\"pair-card\" style=\"display:flex;align-items:center;justify-content:space-between;background:#f4f9f4;border:1px solid #c8e6c9;border-radius:8px;padding:16px 18px;text-decoration:none;\"\u003e\n      \u003cdiv class=\"pc\"\u003e\n        \u003cdiv style=\"font-weight:700;color:#2e7d32;font-size:.95rem;margin-bottom:3px;\"\u003eEnvironment Controllers\u003c\/div\u003e\n        \u003cdiv style=\"font-size:.85rem;color:#444;\"\u003eMonitor and automate your grow room environment\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pa\" style=\"color:#2e7d32;font-size:1.2rem;margin-left:12px;\"\u003e→\u003c\/div\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/collections\/water-control\" class=\"pair-card\" style=\"display:flex;align-items:center;justify-content:space-between;background:#f4f9f4;border:1px solid #c8e6c9;border-radius:8px;padding:16px 18px;text-decoration:none;\"\u003e\n      \u003cdiv class=\"pc\"\u003e\n        \u003cdiv style=\"font-weight:700;color:#2e7d32;font-size:.95rem;margin-bottom:3px;\"\u003eWater Management\u003c\/div\u003e\n        \u003cdiv style=\"font-size:.85rel;color:#444;\"\u003eAll your water quality and irrigation control gear\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pa\" style=\"color:#2e7d32;font-size:1.2rem;margin-left:12px;\"\u003e→\u003c\/div\u003e\n    \u003c\/a\u003e\n\n  \u003c\/div\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- Grow Guys Tip --\u003e\n  \u003cdiv class=\"tgg-tip\" style=\"background:#fff8e1;border-left:4px solid #f9a825;border-radius:0 8px 8px 0;padding:18px 20px;margin-bottom:28px;\"\u003e\n    \u003cdiv style=\"font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#e65100;margin-bottom:8px;\"\u003eGrow Guys Tip\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:.95rem;\"\u003e\u003cstrong\u003eCalibrate before every feed cycle, not just when something looks wrong.\u003c\/strong\u003e The number one mistake we see is growers trusting a meter that hasn't been calibrated in weeks. A pH pen that reads 0.3 units off sounds minor — until your plants are locked out and you've burned two weeks chasing a ghost. Aqua Master's calibration fluids are matched to their meters, so use them. Two-point calibration (pH 4.0 and 7.0) takes two minutes and saves you a lot of grief.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cp class=\"tgg-lbl\" style=\"font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#888;margin:0 0 14px;\"\u003eCommon Questions About Aqua Master Tools\u003c\/p\u003e\n\n  \u003cdiv style=\"display:flex;flex-direction:column;gap:10px;margin-bottom:28px;\"\u003e\n\n    \u003cdiv class=\"faq-item\" style=\"border:1px solid #e0e0e0;border-radius:6px;padding:14px 16px;\"\u003e\n      \u003cdiv class=\"faq-q\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eIs Aqua Master Tools available in Australia?\u003c\/div\u003e\n      \u003cdiv class=\"faq-a\" style=\"font-size:.9rem;color:#444;\"\u003eYes — The Grow Guys in Invermay, Tasmania is an Australian stockist for Aqua Master Tools. We ship their full range Australia-wide, with free shipping on orders over $499. You can also visit us in store if you're local to Hobart or northern Tasmania.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"faq-item\" style=\"border:1px solid #e0e0e0;border-radius:6px;padding:14px 16px;\"\u003e\n      \u003cdiv class=\"faq-q\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eHow does Aqua Master compare to Bluelab or Apera meters?\u003c\/div\u003e\n      \u003cdiv class=\"faq-a\" style=\"font-size:.9rem;color:#444;\"\u003eAll three are solid choices. Bluelab is the gold standard in commercial Australian grows and carries premium pricing to match. Apera is another reliable option. Aqua Master sits in a sweet spot — accuracy and build quality that competes seriously with both, at a price point that's easier to stomach, especially if you're running multiple meters across different areas of your grow.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"faq-item\" style=\"border:1px solid #e0e0e0;border-radius:6px;padding:14px 16px;\"\u003e\n      \u003cdiv class=\"faq-q\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eDo Aqua Master meters need calibration fluid, or can I use generic solutions?\u003c\/div\u003e\n      \u003cdiv class=\"faq-a\" style=\"font-size:.9rem;color:#444;\"\u003eYou can use generic calibration fluids at the correct buffer values, but Aqua Master's own calibration solutions are designed specifically for their meters and are the safest bet for accuracy. We stock their calibration range alongside the meters — pick them up together and you won't have to think about it.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"faq-item\" style=\"border:1px solid #e0e0e0;border-radius:6px;padding:14px 16px;\"\u003e\n      \u003cdiv class=\"faq-q\" style=\"font-weight:700;font-size:.95rem;margin-bottom:6px;\"\u003eWhere are Aqua Master Tools products made?\u003c\/div\u003e\n      \u003cdiv class=\"faq-a\" style=\"font-size:.9rem;color:#444;\"\u003eAqua Master Tools designs and develops all of their products in the Netherlands, where the company was founded in 2018. They oversee the full development process in-house — from initial design through to production — which gives them tighter quality control than brands that outsource design entirely.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003chr class=\"tgg-hr\" style=\"border:none;border-top:1px solid #e0e0e0;margin:28px 0;\"\u003e\n\n  \u003c!-- CTA --\u003e\n  \u003cdiv class=\"tgg-cta\" style=\"background:#1b3a1f;border-radius:10px;padding:32px;text-align:center;\"\u003e\n    \u003ch2 style=\"color:#fff;font-size:1.4rem;font-weight:800;margin:0 0 10px;\"\u003eGet the Right Meter for Your Grow\u003c\/h2\u003e\n    \u003cp style=\"color:#c8e6c9;font-size:.95rem;margin:0 0 22px;\"\u003eBrowse the full Aqua Master Tools range at The Grow Guys — or reach out if you need a hand picking the right unit for your setup. We've used this gear and we know what works.\u003c\/p\u003e\n    \u003cdiv style=\"display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"\u003e\n      \u003ca href=\"\/collections\/aqua-master-tools\" style=\"background:#4caf50!important;color:#fff!important;font-weight:700!important;font-size:.95rem!important;padding:12px 26px!important;border-radius:6px!important;text-decoration:none!important;display:inline-block!important;\"\u003eShop Aqua Master Tools\u003c\/a\u003e\n      \u003ca href=\"\/collections\/meters-pens-ph-ec-testing\" style=\"background:transparent!important;color:#fff!important;font-weight:700!important;font-size:.95rem!important;padding:12px 26px!important;border-radius:6px!important;border:2px solid #fff!important;text-decoration:none!important;display:inline-block!important;\"\u003eBrowse All pH \u0026amp; EC Meters\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"aqua-master-tools-p50-pro2-ph-temperature-meter","title":"Aqua Master Tools P50 Pro2 pH \u0026 Temperature Meter — IP67 Waterproof Pen Meter","description":"\u003c!-- ============================================================\n     AQUA MASTER TOOLS P50 Pro2 pH\/TEMP METER\n     The Grow Guys — Shopify Product Page\n     ============================================================\n\nPRODUCT TITLE:\nAqua Master Tools P50 Pro2 pH \u0026 Temperature Meter — IP67 Waterproof Pen Meter\n\nSHOPIFY FIELDS:\n  Title:         Aqua Master Tools P50 Pro2 pH \u0026 Temperature Meter — IP67 Waterproof Pen Meter\n  Product type:  pH \u0026 EC Meter\n  Vendor:        Aqua Master Tools\n  Collections:   Meters \u0026 Pens (pH \u0026 EC Testing), pH Control \u0026 Calibration\n  Tags:          aqua-master, aqua-master-tools, ph-meter, temperature-meter, pen-meter, waterproof, ip67, replaceable-electrode, 2-point-calibration, hydroponic-meter, p50-pro2\n  SKU:           AMT-METER-PH-P50PRO2\n\nSEO FIELDS:\n  Meta title (58 chars):   Aqua Master P50 Pro2 pH Meter | The Grow Guys\n  Meta description (156):  IP67 waterproof pH \u0026 temp pen meter with 2-point auto calibration, replaceable electrode \u0026 AAA batteries. Ships from Invermay, Tasmania.\n  URL slug:                aqua-master-tools-p50-pro2-ph-temperature-meter\n\nPRICING RECOMMENDATION:\n  Recommended price: $134.95 AUD\n  Reasoning: AU competitors (Aqua Gardening, Epping Hydroponics) retail the P50 Pro2 at $139.00.\n  Positioning at $134.95 keeps TGG competitive without margin damage. The original P50 Pro\n  (lesser model) sits at $110 at Green Genius — the Pro2 upgrade warrants the premium step-up.\n  Do not discount below $129.95.\n\n============================================================ --\u003e\n\n\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; color: #1a1a1a;\"\u003e\n\n  \u003cp style=\"font-size: 1.05rem; line-height: 1.7; margin-bottom: 1.5rem;\"\u003e\n    The Aqua Master Tools P50 Pro2 is a no-fuss, high-accuracy pH and temperature pen meter built for daily use in the grow room. Whether you're checking reservoir pH before a feed or confirming run-off temperature, this thing delivers a clear, reliable reading in seconds — IP67 waterproof, floatable, and powered by standard AAA batteries so you're never hunting for obscure button cells mid-grow. The Pro2 is the upgraded version of Aqua Master's popular P50 Pro, with a sharper black-and-white display, selectable 1 or 2 decimal precision, and a 30-day calibration reminder built right in.\n  \u003c\/p\u003e\n\n  \u003c!-- BENEFIT CARDS --\u003e\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eIP67 Waterproof + Floats\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eFully submersible to 1 metre. Drop it in the reservoir and it floats back up — no fishing required.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eReplaceable Electrode\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eWhen the probe wears out, swap it rather than bin the whole meter. Extends the lifespan significantly.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eReadable Display\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eBlack screen with white characters cuts glare in bright grow rooms. The original P50 Pro display was the main complaint — this fixes it.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eAAA Batteries Included\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eStandard AAA cells instead of fiddly button batteries. Easier to source, longer run time, ready to go out of the box.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003e2-Point Auto Calibration\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eCalibrate to pH 4.0 and 7.0 buffer solutions. The meter walks you through it automatically — no manual maths involved.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003e30-Day Calibration Reminder\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eBuilt-in reminder prompts you to recalibrate after 30 days. Keeps readings honest without relying on memory.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- SPECS --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eSpecifications\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; margin-bottom: 2rem; font-size: 0.95rem;\"\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.0 – 14.0 pH\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.1 pH or 0.01 pH (selectable)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±0.1 pH\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0°C – 50°C (32°F – 122°F)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.1°C (0.2°F)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±1.0°C\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemp. Compensation\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0°C – 50°C (automatic)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e2-point auto (pH 4.0 \u0026amp; 7.0)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eIP67 (floats if dropped)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eAuto Power-Off\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eAfter 8 minutes\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e2 x 1.5V AAA batteries (included)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e230 x 43 x 43 mm\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e132 g\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e1 year (6 months on electrode)\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TIP BOX --\u003e\n  \u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f9a825; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 2rem;\"\u003e\n    \u003cstrong style=\"color: #e65100; display: block; margin-bottom: 0.5rem;\"\u003eGrower Tips — Get the Most From Your P50 Pro2\u003c\/strong\u003e\n    \u003cul style=\"margin: 0 0 0 1.2rem; padding: 0; font-size: 0.93rem; line-height: 1.7;\"\u003e\n      \u003cli\u003eStore the meter upright with KCl storage solution in the cap. A dry electrode drifts and wears out faster.\u003c\/li\u003e\n      \u003cli\u003eBefore first use, soak the tip in tap water for 12 hours to properly hydrate the glass membrane.\u003c\/li\u003e\n      \u003cli\u003eUse the 0.01 resolution setting when dialling in critical pH windows — 0.1 is fine for routine checks.\u003c\/li\u003e\n      \u003cli\u003eRecalibrate with fresh buffer solution at least once a month, or whenever the 30-day reminder triggers.\u003c\/li\u003e\n      \u003cli\u003eAlways rinse the electrode with distilled or RO water between measurements to avoid cross-contamination.\u003c\/li\u003e\n      \u003cli\u003eThe meter ships pre-calibrated, but calibrate it yourself before the first grow cycle reading for full accuracy.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- HOW TO USE --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eHow to Use the P50 Pro2\u003c\/h2\u003e\n\n  \u003cdiv\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e1\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eHydrate the electrode (first use only)\u003c\/strong\u003e — Soak the tip in tap water for 12 hours before the very first measurement. Remove the protective cap and gently clean the electrode with distilled water, then dry it carefully.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e2\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eCalibrate with buffer solutions\u003c\/strong\u003e — Press and hold the CAL button to enter calibration mode. Dip the meter into your pH 7.0 buffer first, wait for a stable reading, then confirm. Repeat with pH 4.0 buffer. The meter auto-recognises each solution and locks in the calibration points.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e3\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eTake your measurement\u003c\/strong\u003e — Press the On\/Off button to power up. Insert the meter upright into your nutrient solution or water sample, submerging to the marked line. Stir gently and wait a few seconds for the reading to stabilise on the display.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e4\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eSwitch between pH and temperature\u003c\/strong\u003e — Use the MODE button to toggle between the two readings on the display. The meter shows both parameters in sequence — no need for a separate thermometer.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e5\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eAdjust precision if needed\u003c\/strong\u003e — The P50 Pro2 lets you choose between 0.1 and 0.01 pH resolution. For quick routine checks, 0.1 is plenty. When you're dialling in a critical reservoir, switch to 0.01 for the extra decimal place.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e6\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eRinse and store correctly\u003c\/strong\u003e — After use, rinse the electrode with distilled or RO water and dry gently. Fill the protective cap with KCl storage solution before replacing it. Store the meter upright so the electrode tip stays immersed. The meter will power off automatically after 8 minutes if you forget.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- PAIRS WITH --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem; margin-top: 2rem;\"\u003ePairs Well With\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\n    \u003ca href=\"\/products\/ph-4-buffer-solution-by-hy-gen\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eHy-gen pH 4.0 Buffer Solution\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eOne half of your 2-point calibration kit. Use this with the 7.0 buffer every 30 days to keep the P50 Pro2 reading accurately.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/products\/ph-7-buffer-solution-by-hy-gen\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eHy-gen pH 7.0 Buffer Solution\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe neutral reference point for 2-point calibration. Always calibrate 7.0 first, then 4.0, for best accuracy across the grow range.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/products\/ph-up-and-down-by-growth-technology\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003epH Up \u0026amp; Down by Growth Technology\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eOnce your meter tells you where pH sits, these adjust it. Fast-acting and highly concentrated — a little goes a long way.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/collections\/meters-pens-ph-ec-testing\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eEC Meters \u0026amp; Pens\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe P50 Pro2 covers pH and temp. Add an EC pen alongside it to nail nutrient strength — the two together give you the full picture.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat is the difference between the P50 Pro and the P50 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eThe Pro2 adds three key upgrades over the original P50 Pro: AAA batteries instead of button cells (easier to replace, longer life), a black display with white characters for significantly better readability under grow lights, and selectable 1 or 2 decimal pH precision. It also includes a 30-day calibration reminder. The core measurement range and accuracy specs are the same.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes the P50 Pro2 measure EC or PPM?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo — the P50 Pro2 measures pH and temperature only. It does not read EC, PPM, or TDS. If you need EC alongside pH, look at the Aqua Master P110 Pro2 combo pen, which measures all three parameters in one device.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eIs the P50 Pro2 suitable for measuring nutrient solution run-off?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes — the P50 Pro2 works well for run-off pH checks. Collect your run-off sample in a container, dip the meter in, and read the result. Just make sure to rinse the electrode with distilled water between your reservoir reading and your run-off sample so you don't carry over contamination.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eHow often should I calibrate the P50 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eAt minimum, calibrate once per month — the meter will remind you after 30 days. For critical grows or high-value crops, calibrating weekly is not overkill. pH electrodes drift gradually with use, and a miscalibrated meter is worse than no meter at all because it gives you false confidence.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eCan I replace the electrode myself?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes — the electrode on the P50 Pro2 is user-replaceable with no special tools required. This is one of the main reasons to choose an Aqua Master meter over cheaper alternatives that require you to bin the entire device when the probe wears out. Replacement electrodes are available separately.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat buffer solutions do I need to calibrate the P50 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYou need pH 4.0 and pH 7.0 buffer solutions for the 2-point calibration. These are sold separately — we stock Hy-gen and Bluelab calibration solutions in-store and online. Always use fresh buffer solution from a sealed bottle; used or old buffer gives inaccurate calibration points.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat warranty does the P50 Pro2 come with?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eThe meter itself is covered by a 1-year warranty against defects in materials and workmanship from the date of consumer purchase. The electrode carries a separate 6-month warranty. Warranty requires proof of purchase. Physical damage, dirt ingress from misuse, and damage from third-party parts or unauthorised repairs are not covered.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- CTA BLOCK --\u003e\n  \u003cdiv style=\"background: #1c3a1c; color: #fff; padding: 2rem; border-radius: 10px; text-align: center; margin-top: 2rem;\"\u003e\n    \u003ch2 style=\"color: #fff !important; margin: 0 0 0.5rem; font-size: 1.3rem;\"\u003eStop Guessing. Start Measuring.\u003c\/h2\u003e\n    \u003cp style=\"color: #aed1ae !important; margin: 0 0 1.5rem; font-size: 0.95rem;\"\u003eThe P50 Pro2 is the meter growers keep coming back to — waterproof, readable, and built to last longer than a single season. Grab one and take pH out of the guesswork column for good.\u003c\/p\u003e\n    \u003cdiv style=\"display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;\"\u003e\n      \u003cbutton id=\"btn-add-to-cart\" style=\"background: #4caf50 !important; color: #fff !important; padding: 0.85rem 2rem !important; border: none !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 700 !important; cursor: pointer !important;\"\u003eAdd to Cart\u003c\/button\u003e\n      \u003ca href=\"\/collections\/meters-pens-ph-ec-testing\" style=\"background: transparent !important; color: #fff !important; padding: 0.85rem 2rem !important; border: 2px solid #fff !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 600 !important; text-decoration: none !important; display: inline-block !important;\"\u003eBrowse All pH \u0026amp; EC Meters\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  var btn = document.getElementById('btn-add-to-cart');\n  if (!btn) return;\n  btn.addEventListener('click', function() {\n    fetch('\/cart\/add.js', {\n      method: 'POST',\n      headers: {'Content-Type': 'application\/json'},\n      body: JSON.stringify({id: parseInt('51379198492970', 10), quantity: 1})\n    }).then(function(response) {\n      return response.json();\n    }).then(function(data) {\n      if (data.status \u0026\u0026 data.status !== 200) { throw new Error(data.description); }\n      btn.textContent = 'Added to Cart';\n      btn.style.background = '#388e3c';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2000);\n    }).catch(function() {\n      btn.textContent = 'Error — Try Again';\n      btn.style.background = '#c0392b';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2500);\n    });\n  });\n});\n\u003c\/script\u003e","brand":"Aqua Master Tools","offers":[{"title":"Default Title","offer_id":51379198492970,"sku":"AMT-METER-PH-P50PRO2","price":139.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/files\/Aqua-Master-Tools-P50-Pro2-pH-Temperature-Meter-IP67-Waterproof-Pen-Meter.jpg?v=1776901765"},{"product_id":"aqua-master-tools-p160-pro2-combo-pen","title":"Aqua Master Tools P160 Pro2 Combo Pen — pH, EC, TDS, PPM \u0026 Temperature Meter","description":"\u003c!-- ============================================================\n     AQUA MASTER TOOLS P160 Pro2 COMBO PEN\n     The Grow Guys — Shopify Product Page\n     ============================================================\n\nPRODUCT TITLE:\nAqua Master Tools P160 Pro2 Combo Pen — pH, EC, TDS, PPM \u0026 Temperature Meter\n\nSHOPIFY FIELDS:\n  Title:         Aqua Master Tools P160 Pro2 Combo Pen — pH, EC, TDS, PPM \u0026 Temperature Meter\n  Product type:  pH \u0026 EC Meter\n  Vendor:        Aqua Master Tools\n  Collections:   Meters \u0026 Pens (pH \u0026 EC Testing), pH Control \u0026 Calibration\n  Tags:          aqua-master, aqua-master-tools, ph-meter, ec-meter, tds-meter, ppm-meter, temperature-meter, combo-pen, combo-meter, waterproof, ip67, replaceable-electrode, 2-point-calibration, hydroponic-meter, p160-pro2, carry-case\n  SKU:           AMT-METER-COMBO-P160PRO2\n\nSEO FIELDS:\n  Meta title (56 chars):   Aqua Master P160 Pro2 Combo Pen | The Grow Guys\n  Meta description (155):  5-in-1 pH, EC, TDS, PPM \u0026 temp combo pen with carry case \u0026 calibration solutions included. IP67 waterproof. Ships from Invermay, Tasmania.\n  URL slug:                aqua-master-tools-p160-pro2-combo-pen\n\nPRICING RECOMMENDATION:\n  Recommended price: $194.95 AUD\n  Reasoning: Aqua Gardening AU prices the P160 Pro2 at $199.00 — the only confirmed AU\n  competitor stocking the Pro2 specifically. Positioning at $194.95 gives TGG a visible\n  price advantage ($4.05) without compromising margin on a product that ships with\n  calibration solutions and a carry case already included. Do not discount below $189.95.\n\n============================================================ --\u003e\n\n\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; color: #1a1a1a;\"\u003e\n\n  \u003cp style=\"font-size: 1.05rem; line-height: 1.7; margin-bottom: 1.5rem;\"\u003e\n    One pen. Five readings. The Aqua Master Tools P160 Pro2 is the all-in-one combo meter that serious growers reach for when they want pH, EC, TDS, PPM, and temperature covered without carrying a kit bag of separate devices. It comes ready to go in a robust carry case with calibration solutions for pH 4.01, pH 7.00, and EC 1413 already included — so you can calibrate and start measuring on day one. The Pro2 upgrade brings a high-contrast black-and-white display, AAA battery power, and digital EC calibration that doesn't need the solution to be sitting at exactly 25°C, making field calibration far less fussy.\n  \u003c\/p\u003e\n\n  \u003c!-- BENEFIT CARDS --\u003e\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003e5 Parameters, 1 Device\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003epH, EC, TDS, PPM, and temperature — everything you need to dial in your feed and reservoir without swapping pens between readings.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eShips Ready to Calibrate\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eCarry case includes pH 4.01, pH 7.00, and EC 1413 calibration solutions. No need to order extras before your first measurement session.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eTemp-Independent EC Cal\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eDigital EC calibration works at any temperature — no need to wait for your calibration fluid to hit exactly 25°C. Calibrate when it suits you.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eDry Storage Electrode\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eUnlike the P50 Pro2, the P160's electrode doesn't need KCl storage solution — dry storage is fine. One less thing to stay on top of between grows.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eIP67 Waterproof + Floats\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eFully submersible and buoyant. Slip it into the reservoir and it comes back up. Built for the conditions of an actual grow room, not a laboratory.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eReplaceable Electrode\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eWhen the probe drifts beyond calibration, swap the electrode rather than the whole meter. Significantly extends the long-term value of the device.\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- SPECS --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eSpecifications\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; margin-bottom: 2rem; font-size: 0.95rem;\"\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.00 – 14.00 pH\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.01 or 0.1 pH (selectable)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±0.1 pH\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eEC Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.00 – 19.99 mS\/cm\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eEC Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.01 or 0.1 mS\/cm (selectable)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eEC Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±2% F.S.\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTDS Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.00 – 14.00 PPT\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTDS Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.01 or 0.1 PPT (selectable)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTDS Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±2% F.S.\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePPM Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0 – 14,000 PPM\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePPM Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e10 PPM\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePPM Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±10 PPM\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePPM Scale\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e700\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0°C – 50°C (32°F – 122°F)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0.1°C (0.2°F)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e±0.5°C\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eTemp. Compensation\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e0°C – 50°C (automatic)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003epH Calibration\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e2-point auto (pH 4.0 \u0026amp; 7.0)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eEC Calibration\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eDigital manual — any EC calibration fluid\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eIP67 (floats if dropped)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eAuto Power-Off\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eAfter 8 minutes\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e2 x 1.5V AAA batteries (included)\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e230 x 43 x 43 mm\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e132 g\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eCarry case, pH 4.01, pH 7.00 \u0026amp; EC 1413 cal. solutions\u003c\/div\u003e\n    \u003cdiv\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e1 year (6 months on electrode)\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TIP BOX --\u003e\n  \u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f9a825; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 2rem;\"\u003e\n    \u003cstrong style=\"color: #e65100; display: block; margin-bottom: 0.5rem;\"\u003eGrower Tips — Getting the Most From Your P160 Pro2\u003c\/strong\u003e\n    \u003cul style=\"margin: 0 0 0 1.2rem; padding: 0; font-size: 0.93rem; line-height: 1.7;\"\u003e\n      \u003cli\u003eThe P160 uses a dry storage electrode — no need for KCl solution between uses. Just rinse, dry gently, and replace the protective cap.\u003c\/li\u003e\n      \u003cli\u003eCalibrate EC first, then pH. EC calibration is temperature-independent, so knock it out at room temp before touching the pH calibration buffers.\u003c\/li\u003e\n      \u003cli\u003eUse the included EC 1413 calibration solution for your first calibration, then reorder when it runs low — don't ration it. Fresh cal fluid is the cheapest way to keep readings accurate.\u003c\/li\u003e\n      \u003cli\u003eThe 700 PPM scale is set at the factory. If your nutrient brand references 500 PPM scale values, multiply their numbers by 1.4 to convert, or note it when logging feed data.\u003c\/li\u003e\n      \u003cli\u003eCalibrate pH with the 7.0 buffer first, then 4.0. The meter auto-recognises each point — don't rush the stabilisation time between dips.\u003c\/li\u003e\n      \u003cli\u003eThe 30-day calibration reminder is there for a reason — add it to your grow room checklist and don't skip it mid-cycle.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- HOW TO USE --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eHow to Use the P160 Pro2\u003c\/h2\u003e\n\n  \u003cdiv\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e1\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eCalibrate EC first\u003c\/strong\u003e — Remove the protective cap and rinse the electrode with distilled water. Pour a small amount of the included EC 1413 calibration solution into the cap or a clean cup. Dip the meter to the marked line, wait for the reading to stabilise, then confirm the EC calibration point. Because EC calibration on the P160 Pro2 is temperature-independent, you can do this at any room temperature without waiting.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e2\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eCalibrate pH (2-point)\u003c\/strong\u003e — Rinse the electrode between calibration solutions. Enter pH calibration mode and dip into the pH 7.0 buffer first. Wait for a stable reading, then confirm. Rinse again and repeat with pH 4.0 buffer. The meter auto-recognises each buffer and locks in both calibration points automatically.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e3\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eTake your measurement\u003c\/strong\u003e — Press the On\/Off button to power up. Insert the meter vertically into your nutrient solution or water sample, submerging to the marked line. Stir gently and wait a few seconds for the reading to stabilise. The meter displays all active parameters in sequence as you cycle through them with the MODE button.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e4\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eCycle through readings\u003c\/strong\u003e — Use the MODE button to scroll between pH, EC, TDS, PPM, and temperature on the display. You don't need to re-dip between parameters — all five readings are taken from the same dip at the same time.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e5\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eAdjust precision as needed\u003c\/strong\u003e — Toggle between 0.01 and 0.1 resolution for pH, EC, and TDS using the RES button. Use the higher precision setting when dialling in a critical reservoir or logging data. The 0.1 setting is sufficient for routine daily checks.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; font-size: 0.93rem; line-height: 1.6;\"\u003e\n      \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e6\u003c\/span\u003e\n      \u003cdiv\u003e\n\u003cstrong\u003eRinse and store dry\u003c\/strong\u003e — After use, rinse the electrode thoroughly with distilled or RO water and dry gently with a clean cloth. Replace the protective cap. The P160 Pro2 uses a dry storage electrode, so no KCl solution is needed in the cap. The meter auto powers off after 8 minutes, and stores neatly back into its carry case.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- PAIRS WITH --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem; margin-top: 2rem;\"\u003ePairs Well With\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\n    \u003ca href=\"\/products\/ph-up-and-down-by-growth-technology\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003epH Up \u0026amp; Down by Growth Technology\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eOnce your P160 tells you where pH sits, these correct it. Fast-acting and concentrated — the natural next step after any meter reading that's out of range.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/products\/ph-calibration-solution-by-bluelab\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003epH Calibration Solution by Bluelab\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe included calibration solutions will eventually run out. Keep spare 4.0 and 7.0 buffer on hand so calibration day doesn't stall your grow schedule.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/products\/ph-4-buffer-solution-by-hy-gen\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eHy-gen pH 4.0 Buffer Solution\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eStock up for ongoing monthly calibrations. Always use fresh, sealed buffer — old or contaminated solution is one of the most common causes of meter drift.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n    \u003ca href=\"\/products\/ph-7-buffer-solution-by-hy-gen\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eHy-gen pH 7.0 Buffer Solution\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe neutral reference point for 2-point pH calibration. Always calibrate 7.0 first, then 4.0, for best coverage across the hydroponic pH range.\u003c\/p\u003e\n    \u003c\/a\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat is the difference between the P160 Pro and the P160 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eThe Pro2 upgrades three things over the original P160 Pro: it runs on standard AAA batteries instead of button cells, the display has been changed to a black screen with white characters for significantly improved readability under grow lighting, and the EC calibration has been updated from analogue to digital — meaning it can be performed at any temperature without needing the calibration fluid to be exactly 25°C. The measurement range and accuracy specs are the same across both models.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat does the P160 Pro2 include in the box?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes — the P160 Pro2 ships in a robust carry case that includes the meter, AAA batteries, pH 4.01 calibration solution, pH 7.00 calibration solution, and EC 1413 calibration solution. It's the most complete out-of-the-box package in the Aqua Master pen meter range, and one of the main reasons to choose the P160 over the P110 if you don't already have calibration solutions on hand.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat is the difference between the P160 Pro2 and the P110 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eBoth measure pH, EC, and temperature. The P160 Pro2 adds TDS and PPM readings and comes with a carry case and calibration solutions included. The P110 Pro2 is the more compact, pared-back option for growers who only need pH and EC — it costs less and does not include a case or calibration fluids. If you want the full picture in one device and value the included accessories, the P160 Pro2 is the better choice. If you just need pH and EC covered and already own calibration solutions, the P110 Pro2 is a solid option at a lower price point.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat PPM scale does the P160 Pro2 use?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eThe P160 Pro2 uses the 700 PPM scale, which is the most common scale used by Australian nutrient brands and hydroponic equipment manufacturers. If you're following a feeding schedule that references 500 PPM scale values, multiply those numbers by 1.4 to get the equivalent 700 scale reading. If you're unsure which scale your nutrient brand uses, check the feed chart — it's usually noted in the fine print.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes the P160 Pro2 need KCl storage solution like other pH meters?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo — the P160 Pro2 uses a dry storage electrode, which means you can store it dry between uses without filling the cap with KCl solution. Rinse the electrode after use, dry it carefully, and replace the protective cap. This makes it considerably lower maintenance than single-parameter pH pen meters that require wet storage to keep the glass membrane active.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eCan I use any EC calibration solution with the P160 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes — this is one of the key advantages of the digital EC calibration system on the P160 Pro2. Because the calibration is not temperature-dependent, you can use any standard EC calibration fluid at any temperature. The included EC 1413 solution works well for the range growers typically operate in. When you need to restock, any quality EC 1413 calibration solution from a reputable brand will do the job.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eHow often should I calibrate the P160 Pro2?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eAt a minimum, once per month — the meter's built-in 30-day calibration reminder will prompt you. For high-value crops or critical grow cycles, calibrating weekly is not excessive. An uncalibrated meter gives you false confidence, which is worse than no meter at all when you're making feed decisions based on the reading.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat warranty does the P160 Pro2 come with?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eThe meter is covered by a 1-year warranty against defects in materials and workmanship from the consumer purchase date. The electrode carries a separate 6-month warranty. Proof of purchase is required. Physical damage, misuse, dirt ingress, and damage from third-party parts or unauthorised repairs are not covered.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- CTA BLOCK --\u003e\n  \u003cdiv style=\"background: #1c3a1c; color: #fff; padding: 2rem; border-radius: 10px; text-align: center; margin-top: 2rem;\"\u003e\n    \u003ch2 style=\"color: #fff !important; margin: 0 0 0.5rem; font-size: 1.3rem;\"\u003eFive Readings. One Dip. Zero Excuses.\u003c\/h2\u003e\n    \u003cp style=\"color: #aed1ae !important; margin: 0 0 1.5rem; font-size: 0.95rem;\"\u003eThe P160 Pro2 is the combo meter that pays for itself the first time it catches a reservoir out of range before it costs you a crop. Calibration solutions and carry case included — ready to measure from the moment it arrives.\u003c\/p\u003e\n    \u003cdiv style=\"display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;\"\u003e\n      \u003cbutton id=\"btn-add-to-cart\" style=\"background: #4caf50 !important; color: #fff !important; padding: 0.85rem 2rem !important; border: none !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 700 !important; cursor: pointer !important;\"\u003eAdd to Cart\u003c\/button\u003e\n      \u003ca href=\"\/collections\/meters-pens-ph-ec-testing\" style=\"background: transparent !important; color: #fff !important; padding: 0.85rem 2rem !important; border: 2px solid #fff !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 600 !important; text-decoration: none !important; display: inline-block !important;\"\u003eBrowse All pH \u0026amp; EC Meters\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  var btn = document.getElementById('btn-add-to-cart');\n  if (!btn) return;\n  btn.addEventListener('click', function() {\n    fetch('\/cart\/add.js', {\n      method: 'POST',\n      headers: {'Content-Type': 'application\/json'},\n      body: JSON.stringify({id: parseInt('51379603112234', 10), quantity: 1})\n    }).then(function(response) {\n      return response.json();\n    }).then(function(data) {\n      if (data.status \u0026\u0026 data.status !== 200) { throw new Error(data.description); }\n      btn.textContent = 'Added to Cart';\n      btn.style.background = '#388e3c';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2000);\n    }).catch(function() {\n      btn.textContent = 'Error — Try Again';\n      btn.style.background = '#c0392b';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2500);\n    });\n  });\n});\n\u003c\/script\u003e","brand":"Aqua Master Tools","offers":[{"title":"Default Title","offer_id":51379603112234,"sku":"AMT-METER-COMBO-P160PRO2","price":249.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/files\/Aqua-Master-Tools-P160-Pro2-Combo-Pen-pH-EC-TDS-PPM-Temperature-Meter.jpg?v=1776901773"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/collections\/aquamaster-tools-logo.webp?v=1775267619","url":"https:\/\/www.thegrowguys.com.au\/collections\/aqua-master-tools.oembed","provider":"The Grow Guys","version":"1.0","type":"link"}