SONOFF CD100S Door Window Alarm Sensor

, Operating environment: -10 – 50 Deg.C, Specifications: , 200m wireless transmit distance, Supports wireless frequency of 433MHz, receiver: 7.5x 2x 1.5cm, Support battery: 12V 23A AA battery (not included), Size: sensor: 8x 3.5x 2cm, Built-in antenna provided, Ultra-low power magnetic dedicated microprocessor, Protocol: EV1527, Wireless frequency: 433MHz, Less than 1μA quiescent current.

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