The Bluelab pH Pen is the quality option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system or when mixing nutrients.
The Bluelab pH Pen is fully waterproof and features selectable units for 'C and 'F, a backlit LCD display, double junction probe, successful calibration indicator, hold function, low battery warning, auto off function, automatic temperature compensation.
This pH Pen has a range of 0.0 – 14.0 pH and 0-50 ˚C or 32-122 ˚F, and an accuracy to ±0.1 pH. It requires one AAA battery (included), and has a 12 month manufacturer’s warranty.
We strongly recommend purchasing the Bluelab pH probe cleaning/storage kit for maintaining your meter.