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 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 induction you and open the door. No need to Contact the button, very convenient. LED indication. Output Contact: NO/NC/COM Mechanical Life: 500000 tests Operating temp: -20°c to 55°c Suitable Humidity: 0-95% (relative humidity) Detection range: 0.1-10cm LED Indicator: White LED indicator: Power OFF Blue LED indicator: Power ON (standby) Red LED indicator: Power ON (sensation) Specifications: Working Voltage: DC 12V Current: 3A Temperature: -20°c~55°c Times: 500,000 Dimension: 86 * 86 * 39mm Weight: 1700g Color: picture color Material: Stainless steel Package Contents: 20 * Infrared Door Exit switch Only the above package content, other products are not included. Note: Light reflection 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.