Collection:
pH, EC, TDS, and PPM Control
52 products
General Hydroponics pH Test Kit 1oz
The General Hydroponics pH Test Indicator can help you maintain an ideal pH level (which is between 5.5 and 6.5). This can be achieved by monitoring your pH using the super concentrated drops found...
Hanna HI70300-050 GroLine Electrode Storage Solution (500 mL)
HI70300-050 is a GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode...
Hanna HI98115 GroLine pH tester
The HI98115 is a GroLine pH tester with advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including tur...
Advanced Nutrients pH-Up 500mL
Advanced Nutrients pH Up is the most concentrated pH adjuster there is on the market. Perfect for larger reservoirs. DIRECTIONS: Use small amounts when adjusting the nutrient solution to affect the...
Hanna HI5036-012 Quick Calibration Solution pH/EC 120ml
HI5036-012 is a quick calibration solution for use with Hanna's GroLine pH and/or EC/TDS meters. Using the Quick Cal function found in compatible meters allows for a single point calibration ...
Hanna HI98118 GroLine Waterproof pH Tester
The HI98118 GroLine pocket pH Tester is an affordable way to measure the pH of hydroponic nutrient solutions. The maintaining of an optimal pH is essential to maximize optimum growth. The general r...
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