This sensor comes with everything you need to install it into an existing Z-Wave Plus network, including mounting screws and a battery.nZ-Wave Plus is a low power mesh networking communications technology that allows Z-Wave Plus enabled devices to communicate with each other and to distribute Z-Wave Plus messages throughout the network.nZ-Wave Plus products are fully backward compatible with classic Z-Wave products. Z-Wave Plus has longer battery life, faster operation, better RF coverage, and easier installation.nThis Sensor mounts to a door or window, detects when it is opened or closed, and sends a Z-Wave® trigger signal to the network. It also has a tamper-proof switch, which will trigger a Z-Wave signal when the sensor's cap is removed. These trigger signals can be used to activate various other devices and perform preprogrammed tasks. When the sensor is included into a secured Z-Wave network, all communications will be encrypted using AES encryption. Door/Window Sensor: This sensor mounts on a Door or Window and sends a Z-Wave Plus signal when it is opened and closed. This trigger signal can then be used to activate various other devices and perform preprogrammed tasks. Z-Wave Plus: Z-Wave Plus® devices act as signal repeaters for the Z-Wave Plus network, so multiple devices result in more possible transmission routes, which helps eliminate RF "dead spots" in the network. Any Z-Wave Plus enabled device displaying the Z-Wave Plus logo can be used with Z-Wave Plus devices from other manufacturers. Easy to Install: This sensor comes with everything you need to install it into an existing Z-Wave Plus network, including mounting screws and a battery. Low Power ________________________________________ Z-Wave Plus is a low power mesh networking communications technology that allows Z-Wave Plus enabled devices to communicate with each other and to distribute Z-Wave Plus messages throughout the network. Backwards Compatible ________________________________________ Z-Wave Plus products are fully backward compatible with classic Z-Wave products. Z-Wave Plus has longer battery life, faster operation, better RF coverage, and easier installation. What's Included ________________________________________ • 1x Z-Wave Plus Sensor • 1x Contact Magnet • 2x Adhesive Tape for Magnet • 1x CR123A Lithium Battery • 4x Screws for Bracket/Sensor • 1x User's