Sonoff Door/Window Sensor uses an ultra-low power magnetic dedicated microprocessor which supports wireless frequency of 433.92MHz and can transmit up to a distance of 200m with its built-in antenna.
Note: This sensor cannot operate independently and requires a RF Bridge
Specifications
- Support Battery: 12V 23A
- Wireless frequency: 433.92MHz
- Protocol: EV1527
- Quiescent current: ≤5μA
- Emission current: ≤10mA
- Operating environment: -10℃-50℃ (14℉-122℉)
- Product Size: 77*49.5*18.8mm
- Battery: length 27mm, diameter 10mm, this model doesn’t come with battery
- Weight: 45g