Features:The wireless vibration detector with excellent performance and high reliability is especially designed for monitor the opening/closing state of the door.When the door is opened for whatever reason, it will immediately transmits a specific radio wave and alarm the host remotely.Power-saving design, it does not emit radio signals when the door is closed, low power consumption, long service life, practical and durable.It is mainly used for detecting vibrations to scare away thieves or remind the owner to pay attention to the movements of the incoming person.Specifications:Condition: Brand NewMaterial: ABS plasticColor: WhiteFeatures: Low power, medium distanceQuiescent Current: 10uAAlarm Current: 15mAOperating Frequency: 433MHzModulation Method: ASK (amplitude modulation)Transmitting Power: 150mWCoding Type: 1527Transmitting Distance: 50 ~ 100m (open space)Working Temperature: -10C ~ 50CPackage List:1 x Wireless Vibration Detector1 x Rubber Pad.