Bosch DS825 Motion Detector

The DS825 is a microprocessor-based TriTech Passive Infrared/Microwave Intrusion Detectors which provide immunity to false alarms caused by pets (a dog up to 60 pounds or up to 5 cats, and other small animals such as birds or rodents). Patented Passive Infrared and Microwave signal processing provide excellent catch performance with freedom from false alarms. The surface or corner mount DS825 TriTech PIR/Microwave Detector provides a coverage pattern of 25 ft. x 25 ft. (7.5 m x 7.5 m) and a microwave frequency of 10.525 GHz.