Description

The Bluelab pH Pen is a handy 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 hydroponic systems. It’s fully waterproof and also features a backlit LCD with the option to display in Celsius and Fahrenheit, double-junction probe, successful-calibration indicator, hold function, low-battery warning, auto-off function and automatic temperature compensation. This pH pen has a range of 0.0 to 14.0 pH, with an accuracy of ± 0.1 pH, and 0 C to 50 C or 32 F to 122 F. It requires one AAA battery (not included), and has a one-year warranty.