How to choose access control exit button?
Choosing a suitable exit button for access control system is important. There are two ways to pass in and out of the access systems: 1, Read the card when entering or leaving. We usually called it “two-way entrance card” or “two-way read card”. The advantage of this way is that the security level is high. In general, it is not allowed to go out and there is a record to find out when and who came out of the door. 2, Read the card when entering and press the exit button to unlock the door when leaving. We usually called “one-way entrance guide” or “one-way read card”. The advantage of this approach is more convenient but security level and cost are lower. The popularity of this approach is much broader, and it is used in most office access departments for cost performance reasons. The "exit button" or "door button" used in this mode is an integral part of the access control device. The principle of the exit button is actually the principle of a do