Infrared sensor single beam photocell Specifications: TECHNICAL PARAMETERS:Infrared Infrared Frequancy : 1.92khz Wave length :940nm Power supply : 12 to 24 VDC /AC Input : r*15ma - t*30ma operating temperature : --10 degrees to 70 degrees Relay output : 1 a max *36 v Range : range can be reduced to 30% in bad weather conditions : for rain ,dust ,etc Beam sensor photocell infrared sensor features: 1.Small size design, easy installation. 2.universal photocell infrared sensor for automatic door opener 3.IP55, can be installed outside. 4.an-glare, can work under temperature -10 to +70 5.Safe, beautiful, economic, comfortable.