Monoprice via Ebay has Monoprice Z-Wave Plus Door and Window Sensor for $19.99 with free shipping. You can save $10.00 at checkout.
- This Z-Wave Plus® Door/Window 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 cover 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