Expandable for Wireless Driveway System (Only Sensor, CAN NOT Work Without Receiver)

Reliable & Dependable: 1/3-mile long range (1760 ft; 536m) tested in real-world settings with trees, buildings, walls, and vehicles for an accurate measure of wireless range. Weatherproof motion sensorsperforms well in rain or snow!
Rechargeable & Expandable Sensor: The sensor is equipped with a rechargeable battery for up to 12 months on a full charge! Easily adjust the sensors sensitivity to avoid interference like leaves or small animals, or expand your security zone to up to 8 additional sensors! Super Easy To Install And Customize: Install this wireless outdoor motion alert system in just a few minutes! Simply place your sensor (s) (expands up to 8) anywhere on your property, and get a customized in-home chime the second a person, vehicle or large animal moves within 30 feet of your detection zone! For more details, please read the included instructions and Quick Start Guide carefully before use. Package.
Note: This separate sensor is only used for expanding a Driveway Alarm System; it cannot work without a receiver