NEW Bluelab Digital pH Tester Pen Accurate Meter Measures pH & Temperature pool

NEW in Box. Measures pH in nutrient solution (acid or alkaline) for precise up and down adjustment with lab quality glass probe; General uses include growing tent, swimming pool, drinking water, aquarium, fish tank, hydroponics, and brewing. Operating temperature : 0 - 50 °C, 32 - 122 °F. This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature; Calibration reminder; Durable design for repeated uses; Fully waterproof and floats in solutions