Wireless IR alarm with timer set up, can alarm if IR detects any motions; Energy-saving and environmental friendly; Convenient wall mounted design, easy to install; Powered by solar, supports non-direct sunlight and lighting light; Voice decibels: 130dB; 30s off time, 5s on; With auto reset function; IR range: 8m, horizontal: 120 degree, vertical: 60 degree; With low battery indicating; Low power consumption, standby current: 30μA; Guarantee time: 1 year; Suitable for store, office, library, company and home, etc.