Hanna Instruments GroLine pH Dosing System Auto Doser HI-981412-00 Type_Designed and Built by CityFarm safe when used as directed

safe when used as directed

the meter will automatically accept and store the calibration value

Simply extracting a small portion of cloth from the water pH teter will clear any clog by exposing a fresh

organic nitrogen 1%

Comes with 10 holes (47mm)

Hanna Instruments GroLine pH Dosing System Auto Doser HI-981412-00 Type_Designed and Built by CityFarm safe when used as directedDeveloped to be an inexpensive solution for the horticulturist, the HI981412 pH Controller and Dosing Pump is a system engineered for maintaining the pH of nutrient solutions and irrigation water. Simply insert the probe and injection valve in line with the recirculation pump and provide the chemical to be dosed. Available in multiple configurations. Programmable alarm system and multicolored LCD display Perfect for small hydroponics systems