pH Pen by Bluelab - Digital pH & Temp Meter

🌡️ Compact. Precise. Built for Grow Legends.

This isn’t your average pen - it’s the secret weapon every hydro grower needs. The Bluelab pH Pen gives you a fast, no-fuss way to check pH and temp in your res. Simple to use, tougher than your nan’s roast lamb, and waterproof enough to float if you drop it in.

Whether you're dialling in leafy greens or pushing your Flowers into beast mode, this pen keeps you locked into that Goldilocks zone - not too acidic, not too alkaline, just right.

🔹 Key Features

🔢 Measures pH with 0.1 accuracy

🌬️ Automatic temperature compensation

🛠️ Fully waterproof and it floats!

🔎 Two-point calibration for spot-on accuracy

🔋 Auto-off to save battery life (AAA included)

🛅 One-year warranty for peace of mind

🛠️ How to Use It

Dip it, wait a few seconds, and boom - you’ve got instant pH and temp readings. Clean and calibrate regularly to keep it sharp. Handy as hell for adjusting your nutrient mix and avoiding dreaded lockouts.

🌟 Grow Guys Tips

pH swings can wreck your grow. Use this pen daily during feeding cycles to keep your levels steady. Combine it with the Bluelab Conductivity Pen to control both nutrient strength and uptake like an absolute boss.

🥤 Perfect For

Hydroponic growers chasing precise control. Great for DWC, NFT, flood and drain, and coco growers who care about dialling in every detail.

📦 Specs & Stuff

• Measures: pH (0.0–14.0) and temperature (0°C–50°C)

• pH accuracy: ±0.1

• Fully waterproof

• One AAA battery (included)

• Made in New Zealand

• One-year warranty

🚀 Measure Like a Pro

Click ‘Add to Cart’ and stop second-guessing your grow. The Bluelab pH Pen puts precision in your pocket - and bigger yields in your future.