Features: With no residual magnetization technology, it is easy to install and is used for automatic doors. The magnet uses a special electromagnet material to layer the inner cavity structure to improve the magnetic permeability. The magnet and the suction cup are chrome-plated, and the mounting base and other components are stamped. High precision, beautiful appearance, rust-proof and durable, long service life. Power-on lock, power-off unlock, energized electromagnetic door suction. It can be mounted on the ground or mounted on a wall with an adsorption deflection angle of 45 degrees. When the door is opened to 90 degrees, the suction plate and the electric lock body are combined. Installed with an emergency interrupt button, interrupted without residual magnetism. Specification: Condition: 100% Brand New Material: Aluminium Alloy Color: As picture shown Opening angle: 90 degrees Suction: 60 kg Voltage: 12V DC/24V DC Working current: 60mA Mode of operation: power-on lock, power-off unlock Wiring: use 12VDC or 24VDC, red is connected to the positive pole of the power supply, and black is connected to the negative pole of the power supply. Packing size: 13.2 x 10.8 x 8.5cm/5.2 x 4.3 x 3.3in Package List: 1 x Door suction body 1 x Suction plate body 2 x Install suction plate 1 x Hex wrench 4 x Screw Note: Please allow slight dimension difference due to different manual measurement. .