Monoprice has their Z-Wave Plus Door and Window Sensor, No Logo on sale for $19.99, but they also have a 15% off coupon that works on it today. Coupon code is SUNDAY. Free shipping.
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.
Features:
- Detects when a door or window is opened
- Tamper sensor sends an alert to the controller if the sensor is tampered with
- Uses the latest backward compatible revision of Z-Wave® technology
- Up to 1 year battery life
- Z-Wave Plus® provides 50% more power than previous generations
- Z-Wave Plus provides 67% improvement in transmission range
- Z-Wave Plus offers Plug-n-Play inclusion network wide
- Compatible with SmartThings™, Vera™, HomeSeer™, and Zipato®