Features:*High Quality Material: The product is made of high-quality material, durable and wear-resistant, not easy to break, can use for a long time.*Easy to Install: It uses a low and concealed trip wire, tethered to the device itself, which emits a loud-audible alarm when the trigger-pin is pulled, Trip Alarm is easy to set up and quick to respond, easy to prevent accidental intrusion.*Reusable:The Perimeter Trip Alarm is reusable and is easy to prevent accidental intrusion, it has a solid-construction, and can be reused infinitely.*Universial: Designed to be compatible, trip wire alarm device is easy to meet your need, it can be quickly deployed in pathways and entry areas, attached to doors, gate.*Outdoor Accessories: Trip wire perimeter alarm is designed for outdoor use, it is for outdoor use only, keep away from flammable materials, no intention to harm anything, just to make a loud-sound to remind you when you need, suitable for daily use.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Size: 7.6*2.5*2.5cm