10W Magnetic Reed Switch Zinc Alloy Responsive NC Door Window Contact Sensor for Garage Warehouse Shop 100V1Durable Zinc Alloy Construction: The magnetic reed switch is built with a durable zinc alloy casing, providing excellent rust resistance and durability. 2Strong Magnetic Properties: The switch is equipped with a strong magnet, ensuring a reliable and secure connection when the magnet is drawn close. 3Responsive and Sensitive: The magnetic door switch has a quick response time and high sensitivity, enabling it to detect the presence or absence of a magnet accurately. 4Easy Installation: The switch is commonly installed on fixed door frames, with its corresponding part installed on the door itself. The installation process is simple and hassle free. 5Suitable for Alarm Systems: This magnetic reed switch is commonly used in door and window alarm systems, such as garages, warehouses, and shops, offering reliable detection and protection.