Specifications for Sonoff DW1 Sensor

• 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