Fairnull Wireless PIR Driveway Alarm — Motion Sensor Security System for Garage & Property (Pairs with up to 50 Sensors)

Instantly detect pedestrians approaching your property with this Fairnull infrared wireless alarm. The PIR motion sensor triggers both a red light and an audible alert the moment someone enters the monitored area. The receiver can be linked with up to 50 sensors, allowing coverage of large or multiple locations for early warning of visitors or intruders. The sensor is compact and unobtrusive, and can be mounted on a garage, mailbox, fence post, or almost any other outdoor spot.