Passive infrared detector QUAD double PIR, reach 15 meters, Antimasking. EN50131 Grade 3 certificate. Two independent IR dual sensors and two digital processing channels that offer the highest level of detection and immunity against false alarms. Anti-Masking Method with Active IR. Tripe Resistor RFL incorporated, selectable by bridge. Opto-relays to avoid attack with large magnets. Top and wall / corner tampers. Intelligent Digital Signal Processing. Digital detector and true temperature compensation. Built-in RFL resistance. Optional Accessories: Wall bracket with rear tamper, wall / corner ball joint, ball joint. Interior installation, mounting height from 2.10 to 2.70 meters. Power: 9 to 16 VDC. Maximum consumption: 36.5 mA. Dimensions: 127.6 x 64.2 x 46.6 mm.