Single Beam Photoelectric Detector Active IR Sensor Product Name : Active Infrared Detector;Type : Single Beam;Install Distance(Max.) :20m Infra-red Frequency : 1.92Khz;Power Supply : DC/AC 12 to 24V;Wave Length : 940nm Input : RX 15mA~TX 30mA;Operating Temperature : -20C to 70C;Relay Output : 1A 30V max. Size (Each One) : 7.5 x 4.8 x 3cm/3'' x 1.9'' x 1.2'' (L*W*T);Color : Black;Housing Material : Plastic Shape (Each One) : Half Egg Shaped;Net Weight : 93g;Package Content : 1 Pair x Active Infrared Detector,1 x English Usage Manual,1 Bag x Install Tools