On Balance
On Balance Scales
Precision that actually holds up.
What’s in this collection
This collection features On Balance scales - some of the most trusted precision pocket scales used by growers, herbalists, extract makers, and reloaders worldwide.
On Balance has been building accurate mini scales since the late 70s, long before digital pocket scales were everywhere. Today they’re one of the most recognised names in the game, known for reliable readings, durable designs, and proper warranties.
Inside this collection you’ll find:
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Digital pocket scales for herbs, nutrients, and concentrates
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High-precision mini scales for micro measurements
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Reload scales designed for powder and small batch weighing
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Compact portable scales perfect for grow rooms or work benches
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Durable units backed by 3–10 year warranties
Whether you're weighing dry amendments, powdered nutrients, extracts, or botanicals, these scales keep your measurements consistent and accurate.
Why it matters in your grow
When you're mixing nutrients, measuring additives, or working with high-strength supplements, accuracy matters more than most growers realise.
A good precision scale helps you:
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Dial in exact nutrient ratios
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Measure micro-dose additives without guesswork
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Keep feeding schedules consistent
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Avoid overfeeding plants in hydroponics or coco systems
On Balance scales are popular with growers because they’re stable, fast to calibrate, and built to handle regular use. No drifting numbers. No cheap sensors that lose accuracy after a few months.
They’re also compact enough to live inside a grow room, trimming station, or mixing bench, making them perfect for daily use.
Build your setup properly
Precise measurements are only part of the equation.
When you’re mixing nutrients or dry amendments, pairing your scale with proper measuring tools and storage keeps your workflow clean and consistent.
If you're setting up a proper mixing station, it also helps to organise your inputs with our [Nutrients Collection] so everything from base nutrients to additives stays dialled in and easy to measure.
Welcome to The Grow Guys
We built The Grow Guys from the soil up — well, coco and perlite. Before we sold gear, we bought it, ran it, and learned the hard way what's worth the money and what ends up in the shed. That's the filter everything on our shelves passes through. No sales scripts, no rebadged junk, no telling you what you want to hear. Just gear we'd run ourselves and advice from people who actually grow. Chasing higher yields, tighter flowers, or your first harvest? You're in the right place.
FAQs
Calculated at checkout by weight and destination. Free shipping over $499*.
Order by 2pm and it ships the same business day from Invermay, Tasmania.
500+ products across 40+ brands, every one filtered through 14 years of real growing experience. Shipping Australia-wide.
30-day change-of-mind returns on unopened, unused products. A 10% restocking fee applies and return shipping is at your cost.
Call, email, or walk into the Invermay shop. You'll get a grower on the other end, not a script.