Z-Wave Plus Door/Window Sensor for $17.99, Garage Door Sensor $19.54

This 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.