Insteon Wireless Hidden Door Sensor, Automatically Turn Lights On/Off, 2845-222 - Insteon Hub Required for Smarthphone Alerts
Peace of mind - that's what Hidden Door Sensor brings to your home. With Hidden Door Sensor and the Insteon Hub, you will always know whether the front door has been opened or if you forgot to close the door to the garage. Hidden Door Sensor installs inside the door or door frame, reporting door activity wirelessly to your Insteon home.