PH/EC/TDS Meters and Solutions

This modern Hanna GroLine Waterproof EC/TDS meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The meter has a ve...

General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and ob...

*Uses food-grade phosphoric acid to lower the pH to the proper level. To maximize plant growth, the pH content of your nutrients should be slightly...

*Formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to ...

General Hydroponics pH Control Kit contains 8 oz of GH pH Up, 8 oz GH pH Down, 1 oz of the GH pH Test Indicator and a test vial. GH pH Up - Add a ...

The PH-80 has proven to be the most reliable pH meter in its price range. It has become a favorite in such applications as hydroponics & garde...

The HM Digital COM-80 Hydrotester is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and d...

This modern Hanna GroLine Waterproof pH/temperature meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The meter ...

The meter makes measuring pH quick and easy! This lightweight, waterproof tester offers high accuracy pH, low range EC/TDS (0 to 3999 µS/cm EC/ 0 ...