What's in the box:

Chuango WD-80 315MHz Wireless Vibration Detector Anti-theft Sensor Anti Lost Warning Door Window Alarm Sensor Home Security Alarm System (Standard)

Note: It can only work with 315MHz alarm system, can't work with 433MHz alarm system.

Features:
*315MHz frequency, wireless transmission is more than or equal to 80 meters in open place.
*When the WD-80 detects vibration, it will send alerts to the alarm system for appropriate action.
*There are 3 sensitivity levels that can be adjusted to fit your needs or environment.
*It is ideal for safes, drawers, doors, windows and other places where a secure footing can be established.
*Super quality material for durable use. Low-consumption design, which can make it work long time.

Specifications:
Power supply: DC 3V (AAA 1.5V LR03 * 2pc)
Static current: 29uA
Alarm current: 22.2mA
Transmitting distance: 100m (in open area)
Radio frequency: 315MHz
Housing material: ABS plastic
Operation Condition: Temperature: -10C ~ +55C
Relative humidity: 80% (non-condensing)
Package Size: Approx. 16 * 11 * 5cm / 6.3 * 4.3 * 2in
Package Weight: Approx. 120g / 4.2oz

Package List:
1 * Vibration Detector