Infrared Technology 12V Stainless steel Plate User friendly (Healthy protection) Free from contagious diseases spread Application: Gate/Door/Exit/Automation control High capacity of relay dry contact Normal open (NO) / Normal close (NC) / Common relay output Twin led indicators for sensor standby Only BLUE LED Dimensions : 86 X 86 X 39mm Standard Structure : Stainless steel Panel, Steel Button Current Rating : 3A,36VDC Max Weight : 100g Working Temperature : -20 #34;C ~ 50 #34;C