DEMCO Electromagnetic Door Holder

DEMCO Electromagnetic Door Holder is design for style and easy installation. The contact plate can be adjusted to suit any door angle. Ideal for use with self-closing fire and smoke barrier doors. In application, the device releases the door when signaled by the fire alarm system, which then allows the door closing mechanism to close the door. DEMCO Electromagnetic Door Holders also have a Manual Release Switch to release the door manually or to test the operation of the unit. Each unit is housed in high grade ABS Polycarbonate casing and has a built-in Brass Pin Instant Release that is designed for better reliability and performance.