Touch free sensor is activated when hands are placed within the set range under spout. There is a .6 sec delay for on and a 2 second delay for off. The power will be cut off automatically in cases of irregular use over 120 seconds, sensor will reset during normal use. Sensor is 100% moisture proof.
Sensitive distance of sensor: 4-12″ (10-30 cm).
Wind measure: 161 cfm, (274 m3/h), Wind velocity: (16.5m/sec).