High quality material: Made of durable aluminum alloy, ensuring long-term use.Perimeter trip alarm: Provide effective safety solutions or property.Easy to install: Equipped with iron trigger wire and pull ring, easy to install and set up.Compact size: The product measures approximately 7.6x2.5x2.5CM, making it easy to place with caution.Widely used: Suitable for environments, including homes, businesses, and outdoor areas.Colour:As ShownMaterial:aluminum alloyPackage Contents:1 * perimeter trip alarm1 * trip wireOnly 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.