Door can be locked automatically
by simply closing door.
- This series of locks can be opened with one hand
This lock series has a latch hold / release feature.When
the door is unlocked with a key or thumb-turn, the latch
retracts into the lock. When the door is opened, the latch is
This feature allows the door to be unlocked and opened
with one hand (models ADS and ADT).
- Combination with electric strike
A combination with electric strike AS series will permit
electrical release by remote control, with confirmation
signals for locked or unlocked door and for opened or
ADT : Standard type（Automatic locking function）
ADS : Can be held in the latchbolt dogging position
by simply turning the“Latchbolt holding screw”
ADB : Can be held in the latchbolt dogging position by key or thumb-turn