This protective cover is designed to safeguard detectors and electronic alarms from accidental damage or tampering. Made from durable metal, it features a sturdy anti-collision design that ensures protection. Its sleek and functional appearance blends seamlessly into various environments, providing both safety and style. Features -Color:Silver -Material:Iron -Size:13.00X7.00X4.30cm/5.11X2.75X1.69in -Inner diameter: 106 mm. - protective guard: effectively prevents false alarms and enhances monitoring accuracy, ensuring reliable performance in various environments -Security cage: suitable for high-risk areas, providing secure operation and protection for your sensors -Durable wire structure: made of sturdy iron wire, it resists external damage and theft, ensuring use -Reliable shield: the mesh cover design blocks , extending the lifespan of your sensors -Ideal for large spaces: perfect for warehouses, factories, and other large areas, ensuring comprehensive fire safety Package list: 6 x covers