Power Supply :  1.5V AAA *2Operation Frequency :  Support worldwide frequency Communication Technology :  Z-Wave 

Wireless Range :  40m (Distance of Z-Wave) 

Compatible with Z-Wave Security Alarm System.
When the door or window is open, it will send wireless signal to the control panel. The control panel will call and send sms to the users.
The product is based on low power consumption and high reliability Z - Wave technology, 
that resist interference and temperature changing, fancy design and installation without wiring, easy-to-use. 
This products also can easy integrated with any others Z-Wave products, 
such as Gas Sensor, PIR Sensor, Telephone Alarm Device, so on.