Wireless Vibration Door Sensor Anti Theft Drawer Wardrobe 433 Detector for Home Security Alarm 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 e. 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