1. The PIR-2S passive infrared detector is specially designed for providing space protection in a wireless security system.
2. It detects the movement of human body heat within its effective coverage; thus when an intruder crosses or enters the area, the resulting change in infrared energy from the intruder will be detected and an alarm signal will transmit to the Base Unit.
Dimensions: 1. Size: 70.5 x 120 x 45 mm. 2. Weight: about 85g (without battery).