Feature: 1. Early Warning System: Enhance perimeter security on private property, campgrounds, farms, barns, or restricted areas, and alert for perimeter intrusions. 2. How It Works: Multiple trip wires are used on a single device to provide a trip alarm with 360 degree whole coverage. When the alarm is activated, it will emit a loud audible alarm. 3. Simple and Reliable: Trip line alarm is easy to set up, simple and effective, yet reliable, and are a cost effective solution to alert you to intruders. 4. Reusable: Tripwire perimeter alarms can be reused indefinitely and can be deployed on any path, entry area, connected to doors, gates, etc. 5. Applications: Olive green color, ideal for wooded areas, can be used in buildings, yards, courtyards and building exteriors, easily attached to trees, posts or frames by screw holes or zipper cuts.