Features: 1.Can trigger an alarm when push or tap to the vibration detector, increasing the security. 2.A signal is received by the alarm host through wireless vibration, more reliable and accurate. 3.Built-in 433 emisssion mode, widely compatible with all types of alarm hosts. 4.With anti-false alarm, prevent the thief from breaking in, providing safer condition. 5.High sensitivity, low power consumption, more convenient to use. Specification: Features: Can trigger an alarm when push or tap to the vibration detector, increasing the security. A signal is received by the alarm host through wireless vibration, more reliable and accurate. Built-in 433 emission mode, widely compatible with all types of alarm hosts. With anti-false alarm, prevent the thief from breaking in, providing safer condition. High sensitivity, low power consumption, more convenient to use. Specifications: Material: ABS Plastic Color: As the picture show Working Voltage: 12V23A battery (battery not included) Alarm Mode: send a signal to the host when vibration occurs Coding Method: 1527 Launch Mode: 433 Working Current: 10mA Launch Distance: 100 M (In Infinite Open Area), 20 M(With Obstacles ) Size: 71*36*15mm/2.8*1.4*0.6in Package List: 1 * Wireless Vibration Sensor ( Battery Not Included) 1 * Rubber Pad