Premium Materials: The electromagnetic door stop is made of special electromagnetic steel. The inner layer of the electromagnet and the surface of the suction plate are copper-coated, and the outer layer is chrome-plated for a decorative finish. It has a beautiful, rust-resistant, and durable appearance. For Enhanced Security: The door stop is made with premium components, featuring a scientific design and simple wiring. It only needs to be connected to the positive and negative terminals for activation, with signal feedback and can be used in conjunction with an alarm system. Easy Installation: It comes in a compact size and is lightweight, allowing for convenient installation in just a few minutes. Reliable Operation: The electromagnet is made of a special electromagnetic steel material, which retains no magnetism after a power outage. It is internally wrapped with enameled copper wire, which is resistant to high voltage and improves work efficiency. Simple manual operation: equipped with a manual door closing release button, the automatic door closing and smoke prevention system can cut off the power supply to reclose the fire door in case of a fire alarm.