Bluelab Combo Meter Plus Light Controller which convert nitrogen gas in

which convert nitrogen gas in to usable nitrate

EPA 25(b) Exempt product with proven safe ingredients

Optimized wool structure allows for faster rooting-in and nutrient solution replenishment

Shake canister well while covering the hole on lid

Bluelab Combo Meter Plus Light Controller which convert nitrogen gas inThe Bluelab Combo Meter Plus is an all in one, convenient portable solution for accurate measurement of pH, conductivity and temperature in nutrient solution. The battery powered, lightweight unit can be used anywhere, anytime to measure critical parameters related to nutrient uptake in plants. The Bluelab Leap pH probe also allows fast and accurate pH measurements direct from the root zone in a wide range of growing media including soil, rockwool,