Bluelab pH Pen spl_hrg round air stone disc sizes

round air stone disc sizes

2 weighing modes: g/oz

Minimum quantity of 5

Roots Organics Nitro Bat Guano is an excellent source of nitrogen

allowing the grower to view the status of the grow system 24 hours a day

Bluelab pH Pen spl_hrg round air stone disc sizesMeasures pH and temperature. Selectable units for C and F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration indicator. Hold reading function and low battery warning. Fully waterproof with auto off function. Automatic temperature compensation. Along with Bluelab pH Probe KCI Solution, Bluelab pH 7 and Bluelab pH 4 Solution Sachets are now included. Range: 0. 014. 0 pH 050C 32122F. Resolution: 0. 1 pH 1C 1F. Accuracy