Kids are already taught about stranger danger — now we have the technology to help. Our Wireless Motion Detector helps you protect your home and family. By detecting and alerting you when someone comes within 40 ft. of your home, the device will keep you feeling safe and more at ease. With no wires required, setup is easy and convenient. Choose whether to place the device in your home or outside. Then, simply follow the step-by-step installation guide using the correct batteries.