Feature: Featured with infrared technology, Contact free, more convenient to use.Contactless, free from contagious disease spread.The switch responds agilely and quickly.IP-55 industrial protection level. Stainless steel plate, very durable to use.Suitable for doors, gates, or other exit automation control systems.This exit button widely used in the door access control system. When you want to go out, you just need to put your hand near the button and move, then the button will induction you and open the door. No need to Contact the button, very convenient.LED indication.Output Contact: NO/NC/COMMechanical Life: 500000 testsOperating temp: -20c to 55cSuitable Humidity: 0-95% (relative humidity)Detection range: 0.1-10cmLED Indicator:White LED indicator: Power OFFBlue LED indicator: Power ON (standby)Red LED indicator: Power ON (sensation)Specifications:Working Voltage: DC 12VCurrent: 3ATemperature: -20c~55cTimes: 500,000Dimension: 86 * 86 * 39mmWeight: 85g/pcsColor: picture colorMaterial: Stainless steelPackage Contents:4 * Infrared Door Exit switchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.