Imou Door Contact Wireless Sensor Sensor: Motion Distance: 25 to 45mm (1 to 1.7inch) Alarm Prompt: Notification LED indicator Wireless: Wireless Frequencies: 433MHz Transmit Power: 10dBm Transmit Distance: 200m (656.2ft) open area General: Tamper: Front cover and rear cover protection Power: 1 x CR123A battery, 3 years battery life Working Environment: -10℃ to +55℃(14℉ to 131℉), less than 95% RH Installation: Screw or glue to mount Dimension: 84 × 39 × 20mm (3.3 × 1.5 ×0.8inch) Weight: 0.1Kg (0.2lb) Certification |