Make : CMR ,CM 101 Power: Voltage DC 6-V 220V/50Hz (AC) Battery : 4x AA Energizer / Alkakine Batteries Power Consumption : 0.5 mw (DC), < 2 W (AC) Detection Zone : 12-18 cm Water Pressure : 0.05 - 0.6 Mpa Water Temperature : 0 - 80C Diameter of Inlet / outlet Pipe " Degree of Protection : IP 56 Available in AC & DC