Andvari Driveway Alarm PIR Motion Sensor — Wireless Garage & Property Security

Receive instant alerts with a red light & sound when movement is detected. The infrared wireless system notifies you the moment someone enters your property, giving advanced notice that someone’s on their way to your door. One receiver can be paired with up to 50 sensors to secure a larger area. The compact, discreet PIR motion-sensor unit installs on a garage, mailbox, fence post... nearly anywhere.