The terminal of the Electric Lock is actually an electromagnet, which controls a simple mechanical device to open and close the door. At present, there are four types of locks: electric plug locks, magnetic locks, positive pole locks, and negative pole locks. They are suitable for office wooden doors, household anti-theft iron doors, campus classroom doors, etc. 
When choosing an electric lock, the appearance should be exquisite, and the surface should not have obvious scratches or rust. The key to a magnetic lock is to see its tensile resistance; This requires professional equipment to measure, so only after installation can you pull it suddenly with your hand. If it cannot be pulled open, it is considered normal. However, it is important to ensure that the Electromagnetic Lock body fits snugly and the suction iron is not installed too tightly, otherwise it will affect the tensile resistance.
When selecting locks, it is first necessary to distinguish between one-way and two-way door opening situations. For two-way door opening, electric plug locks are definitely used, while for one-way door opening, magnetic locks, electric control locks, cathode locks, glass door clamp locks, electric plug locks, etc. can be used. The door closer is determined by the weight of the door, which is determined by the volume and material of the door. The support is selected according to its beauty, safety and convenience.
