The Fibaro Door / Window Sensor (black) is a battery powered, Z-Wave compatible reed sensor. It combines the functionality of 3 devices (reed, binary and temperature sensor) in one easy to use product. The sensor can be used for monitoring whether a door, window, window blind or a garage gate is open or closed. In addition, you can integrate any binary output sensor with the Z-Wave network using this sensor, e.g. motion sensors, flood sensors, alarm system sensors, etc.The product consists of two elements. One of the parts is mounted on the moving part of the window or of the door. The other part is placed on the frame. The device needs to be included into a Z-Wave network by a remote control or any other Z-Wave controller. If an action is detected, the sensor sends a signal to the Z-Wave network main controller.