Feature:1. This door exit button is nontouch type, no need to touch it, and it has infrared sensor, which is convenient.2. Widely used in access control systems, you can use it in home, shop, office and so on.3. With blue backlit sensing switch, adopt infrared optical technology, when the light is insufficient, you can accurately find the position of the switch.4. With easy installation, surface mount type, no complicated steps, which is very convenient.5. With LED indicator, the blue LED indicator is on represent the status standby, and the green LED indicator is on represent the status in use.Specification:Condition: 100% Brand NewItem Type: Infrared Door Exit ButtonColor: BlackMaterial: ABS PlasticInstallation: Surface MountOutput Contact: No / Nc / ComBlue LED Indicator: StandbyGreen LED Indicator: ActivitySize: Approx. 83x54x20mm/3.3x2.1x0.8inRated Current: 3A at 12-24V DC MAXOutput Contact: NO/ NC/ COMMechanical Life: 500000 TestedInduction Distance: Approx. 5-15cm2x5.9inWorking Temperature: -10-55(14-131)Working Humidity: 0-95% (Relative Humidity).Package List:1 x Infrared Door Exit Button1 x Installation Screw Pack