PRACTICAL AND Reusable: Trip wire perimeter alarms can be reused indefinitely and on any path, entrance area, doors, gates, etc. are used.APPLICABLE Scenario: Trunk alarms are perfect for wooded areas such as buildings, courtyards, courtyards and building exterior configurationsFRUIT WARNING SYSTEM: Improve perimeter security of private properties, campsites, farms, barns or restricted areas and warn of intruders into the perimeter; Alarm security devices are simple, reliable and easy to set up and an effective solution to warn you of intrudersHOW IT WORKS: Multiple wires are used on a single device to provide a alarm with 360 coverage. When the alarm is activated, a loud acoustic alarm sounds. The device can be easily attached to a tree, post or frame through screw holes or zipper cutoutsEFFECTIVE WARNING: Perimeter alarms protect homes, warehouses and property by placing a perimeter around their area and placing a perimeter in an empty area to warn them if someone or something damages their areaColour:BlackMaterial:aluminum alloyPackage Contents:1 * Trip Wire AlarmOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.