The Aqua Medic pH monitor is a precision instrument for controlling permanently the pH value in aquaria. The LED display continuously shows the current pH value of the aquarium water. The measuring range covers pH-values from 0.00 to 14.00. The test liquids included in delivery allow an exact calibration of the electrode that is connected to the pH monitor via a BNC connection.Included:Aqua Medic pH Monitor, pH electrode with BNC fitting, test liquids (pH 4/7) for calibration, power supplytechnical Data Aqua Medic pH MonitorMeasuring range: pH 0 - 14Resolution: 0.01 pHWorking temperature: 0 - 50CHumidity: below 80%Power connection: input: 100 - 240 V, 50/60 Hz AC, output: 12 V DC