GroLine hydroponic
and soil meters
Manage and monitor your growing nutrients on-the-go with our reliable pH and EC meters
Get growing with the best
GroLine hydroponic and soil meters around
Whether you are a commercial or at-home grower, testing is the key to your success. Easily control growth parameters and ensure the right nutrient balance for your plants with GroLine. Start optimizing and generating larger yields in no time.
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5 stars for sure
"I've used other brands and nothing compares to the quality and usability, it's easy. I love the fact that you can replace the probe if it goes bad. Hands-down have my business from here on out!! My only complaint is that I should have tried this pH meter sooner! It displays pH, ppm or EC, and water temperature all-in-one screen. 📺 I love how the probe has an extension, so you don't have your head down in a bucket trying to read the pH lol 😂" - Nick S., Verified Buyer
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GroLine Monitor
"After spending 25 years operating water pollution control facilities, I already knew that Hanna was an industry leader. You can understand how pleased I was when I learned that Hanna produced a laboratory quality instrument for my home hydroponics system, that was as accurate as any laboratory pH meter. The Hanna GroLine Monitor is the perfect addition to any hydroponic system. With 1 probe to continuously monitor pH and TDS and with prepackaged calibration standards, it's extremely easy to calibrate and use. Hanna is a U.S. company. The GroLine Monitor is the perfect instrument for my needs." - Micheal C., Verified Buyer