$10 off Viper 501C Wireless Door/Window Sensor

Protect a key entry point in your home with this Viper 501C wireless sensor, which communicates with your existing Viper system's main hub (not included) to notify you when a door or window has been opened or closed.

Long-range magnetic sensor notifies your existing system whenever an access point, such as a door or window, is opened or closed and then relays that information directly to your enabled mobile phone to keep you apprised when you're on the go