Touch free sensor is activated when hands are placed within the set range under spout. There is a 0.6 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. Features: -Hand dryer. -Finish: Brushed Steel. -14 Gauge drawn steel maximizes durability. -Wall mounted. -20 Second dry time. -Quiet when in use. -5 Year warranty. Specifications: -70 Decibels. -Sound level: 70 DB. -Wattage: 2400 W. -Air volume: 345 m3/h. -Wind velocity: 101km/h. -Sensitive distance of sensor: 4" - 12". -Dimensions: 9.75" H x 11" W x 8.5" D.