Everspring Z-Wave Door/Window Sensor

The Everspring SM103 Z-Wave Door/Window Sensor monitors activity at any entrance in your home. When the door or window is open, contact is broken between the sensor and the magnet, and the sensor signals your Z-Wave enabled system or alarm to alert you (alarm systems sold separately). Perfect for maintaining security or protecting valuables, the sensor can be installed in door frames, window frames, and along drawers and cabinets. When contact is broken, commands are automatically sent to up to four devices, turning on lights, setting off sirens, or any other application you have programmed to report the sensor's state.