Features1EARLY WARNING SYSTEM: Enhance perimeter security of private property, campgrounds, farms, barns or restricted areas and alert of perimeter incursions; Alarm security devices are simple, reliable and easy to set up, and are an effective solution to alert you to intruders 2HOW IT WORKS: Multiple trip wires are used on a single device to provide a trip alarm with 360o coverage. When the alarm is activated, it emits a loud audible alarm. The device can be easily attached to a tree, post or frame through screw holes or zipper cuts 3PRACTICAL AND REUSABLE: Tripwire perimeter alarms can be reused indefinitely and can be deployed on any route, entry area, connected to doors, gates, etc. 4APPLICABLE SCENARIO: Trip line alarms are ideal for wooded areas such as buildings, yards, courtyards, and building exterior configurations 5EFFECTIVE WARNING: Perimeter alarm devices protect houses, camps and property by placing a perimeter around their area and setting a perimeter in a blank space to warn them when someone or something damages their areaSpecificationItem Type: Trip AlarmVoltage: 4.5VProduct Size: Approx. 3.2 x 2.5 x 9.7cm / 1.3 x 1 x 3.8inProduct Material: Aluminum alloyWeight: 164 g / 5.8 oz(approx.)Color: BlackPackage List1 x Trip Alarm 1 x Accessory