Magnetic Switch The Magnetic Door/Window Switch is a reliable and discreet security sensor designed to monitor the status of doors and windows. When the magnetic contact is broken, it triggers an alarm, providing enhanced protection for homes and businesses. Easy to install and compatible with most security systems, this switch is ideal for safeguarding entry points, ensuring that your property is protected against unauthorized access. Durable and efficient, it offers a cost-effective solution for improving security. Rated Voltage : 12V DC Rated Current : 1A Output : Normally Closed (NC) Reading Range : 15mm Used for : Door, Window, Closet, Safe, Drawer, etc...