Professional pH monitor especially designed for use with aquariums
The Milwaukee MC120 pH Monitor is designed to continuously monitor pH, EC or TDS values directly in your reservoir. Features a user-selectable set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS levels rise either above or Below (user selected) that set-point.
Runs on a 12V adapter, so there's no need to worry about failed batteries, and each unit comes with mounting kit, probe, probe holder and starter calibration solution.