1、Touch-free sensor switch with blue backlight for the access control system. 2、Adopt infrared optical technology, when the button is blue in the standby state, if the light is insufficient, you can accurately find the position of the switch. When infrared light reacts, the backlight turns red and the door opens. 3、This infrared switch features no touch exit, widely used in access control systems. 4、Touchless infrared exit sensor, stable and professional performance. 5、High quality stainless steel plate material, firm, corrosion resistant and durable to use. 6、Exquisite workmanship, stylish appearance, 2 LED colors indication, practical to use. 7、Easy to install, no complicated tools required, convenient for using. 1 x Infrared Sensor Switch1 x Mounting Screw Bag Condition: 100% Brand NewItem Type: Door Exit Button Material: MetalColor: As picture shownSize(LxWxH): Approx. 11.3 x 6.8 x 3cm/ 4.4 x 2.7 x 1.2inInput Voltage: DC12VStandard Structure: Plexiglass Touch TriggerElectrical Performance: 3A / 12VDCContact Output: Normally Open / Normally Closed / COM ContactDurability Test: 500,000 Aging Test QualifiedApplication: Suitable for Various Door FramesApplicable Temperature: -20 - + 50℃Applicable Humidity: 0% - 95 (Relative Humidity)Trigger Device: Infrared Sensor