Operation: Infrared Sensor, Control box: Diameter of ‘inlet’ pipe: G1/2”, Water pressure range: 0.75 (Min) – 7 Bar (1 bar or above for best performance), Operation: Battery, Sensing distance: 10-20cm, Respond time: 1 Second, Silent Consumption: 0.003mW, Environment Temperature: 1-45 C, Flow Rate: 1.0L – 1.5L/min, Water temperature: 0-80 deg celcius, Noise Class: 1, Flexible supply hose