Infrared Detector via radio 433-80plus. Reach 16m, 86º, 9 curtains. Compatible with Zerowire and Xgen power plants. Mirror optics that provide a dense coverage pattern. Selectable coverage pattern by means of mirror masks. Full detection of dragged below. False alarm immunity through "5D" signal processing. The adjustment is not necessary for the different mounting heights. Tolerate a deviation in the angle of the wall. Friendly design with the end user to change batteries. 5 years of life through a battery. Standard detection mode or double curtain. Mounting height: 1.8 to 3 m Frequency: 433.65 MHZ. Powered by a CR123 3V battery. Dimensions: 130 x 69 x 53mm.