Bunker Hill Wireless Security Driveway Alert System;

This wireless security system provides peace of mind without tearing your budget to pieces! The wireless receiver in your home will chime when the infrared security alert sensor outside detects motion, so you'll be prepared for that unexpected knock at the door or beep in your driveway. Wireless motion sensor mounts outside on a post or wall, and you can set the receiver anywhere in your house (within 400 ft. of the sensor). The wireless security system is easy to install and includes mounting hardware.