What is a “mag lock” used for in access control?

A mag lock, short for magnetic lock, is utilized in access control systems to secure doors through the use of magnetic force. This type of locking mechanism comprises an electromagnet mounted on the door frame and a metallic armature plate attached to the door. When power is supplied to the electromagnet, it generates a strong magnetic field that holds the armature plate tightly against the magnet, effectively securing the door in a locked position.

The primary purpose of a mag lock is to provide a secure entry point, particularly in areas requiring high security. The strength of the magnetic lock can prevent unauthorized access, making it a preferred choice for organizations that need to control who can enter their facilities.

Other choices refer to different concepts in access control but do not accurately capture the specific function of a mag lock. For instance, while replacing traditional keys is one way to enhance security, it doesn't directly pertain to the operational mechanism of a mag lock itself. Similarly, limiting access during power outages is not a functionality of mag locks, as they typically require a constant power supply to maintain their locking mechanism. Monitoring users through camera systems relies on surveillance technology rather than the locking capabilities of a mag lock.