Feature 1EARLY 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 360 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 areaItem Type: Trip AlarmVoltage: 4.5VProduct Size: Approx. 3.2 x 2.5 x 9.7cm or 1.3 x 1 x 3.8inProduct Material: Aluminum alloyWeight: 164 g or 5.8 oz(approx.)Color: Black .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }Package List1 x Trip Alarm1 x Accessory Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.