Hanna GroLine Monitor Root Innoculant No calibration required

No calibration required

Most light manufacturers provide the ability to control their lighting systems using what known as a low-volt control

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Stack contains organic ingredients and may separate in storage

Hanna GroLine Monitor Root Innoculant No calibration requiredThe HI981420 GroLine Monitor for Hydroponic Nutrients provides around the clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions. Quick to setup, simple to use, this monitor was designed with Hydroponics, Aquaponics, and Greenhouses in mind. Make your nutrient solution easy to manage with the GroLine Monitor. Get 24 7 pH&EC measurements for consistent yields every time. Good Laboratory Practice