In each Access Controller System, some accessories should be necessary. One of them is the Electronic Bolt Lock.
If you want to lock or unlock the door, the Lock should be necessary. There are many different locks.
The Bolt Lock is the basic normal Electric Lock. In these Electric Bolt Locks, there are two different types.
A, Normal Open Lock. It means that this lock will open auto when without power.
B,Normal close Lock. it means that the lock will close auto when without power .