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: The vibration detector is pushed or tapped to trigger an alarm, send a signal to the alarm host, and the host responds and alarms. This 433 wireless vibration detector can not use alone, it is compatible with all kinds of alarm hosts. High stability sensor, superior performance, high sensitivity and reliability. Power-saving design, 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. Specification: Condition: 100 percent Brand New Material: ABS Color: White Size: approx. 71 x 36 x 15mm/2.8 x 14.2 x 5.9in Transmission mode: 433 Working voltage: 12V 23A battery (battery not included in the package) Coding method: 1527 Working current: 10mA Wireless distance: 100 meters (open space), 20 meters (obstacle space) Package List: 1 x Wireless Vibration Detector 1 x Sticker Note: Only can work with alarm system