Wireless Motion Sensor Alarm: A Motion detector is essential in a home security system; It can detect movement in the surrounding areas: driveway, front porch, gate, home, shed, office, walkway, swimming pool, etc, and trigger alerts to the linked receiver; It provides an added level of security and safety to your property and loved ones Long Distance Wireless: Communication ranges up to 1000ft/300m from each sensor to the receiver; Cars, people, and animals can be detected within 24ft/8m of each sensors angled eye; Think of this system as your long-range doorbell Two Work Modes & Three Alert Options to Choose: The receiver can work not only as a doorbell but an alarm; Select one of three ways of being alerted (Sound/LED Flash/Sound and LED Flash) to alert visitors, scare off unwanted intruders, or even know when your children have accessed restricted areas Easy to Install & DIY: This system is fully expandable, with plug-and-play sensors that can be set up within minutes; Pair