Features: 1.The vibration detector is pushed or tapped to trigger an alarm, send a signal to the alarm host, and the host responds and alarms. 2.This 433 wireless vibration detector can not use alone, it is compatible with all kinds of alarm hosts. 3.High stability sensor, superior performance, high sensitivity and reliability. 4.Power-saving design, low power consumption, long service life, practical and durable. 5.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. Specification: Features:_x000D_ _x000D_ The vibration detector is pushed or tapped to trigger an alarm, send a signal to the alarm host, and the host responds and alarms. _x000D_ This 433 wireless vibration detector can not use alone, it is compatible with all kinds of alarm hosts. _x000D_ High stability sensor, superior performance, high sensitivity and reliability. _x000D_ Power-saving design, low power consumption, long service life, practical and durable. _x000D_ 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. _x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Material: ABS _x000D_ Color: White_x000D_ Size: approx. 71 * 36 * 15mm/2.8 * 14.2 * 5.9in_x000D_ Transmission mode: 433_x000D_ Working voltage: 12V 23A battery (battery not included in the package)_x000D_ Coding method: 1527_x000D_ Working current: 10mA_x000D_ Wireless distance: 100 meters (open space), 20 meters (obstacle space)_x000D_ _x000D_ Package List:_x000D_ 1 * Wireless Vibration Detector_x000D_ 1 * Sticker_x000D_ _x000D_ Note:_x000D_ Only can work with alarm system