● By rotating the knob, you can lock and unlock.
● Without the key, it is useful to the opening and closing of the housing for locking and unlocking only parties.
●Lock/Unlock states of the knob can be checked at a glance by indicator.
●It becomes the display of Red(OPEN) and Green(CLOSE).
●For both left and right use (the left or right use can be changed by reversing the stopper plate and adjusting washer.)