The Wilka 1441 Mortise lock with latch guard for metal frame doors, prepared for
profile cylinder, follower, with action of the key on the latch bolt, 1 turn,
handed (direction must be stated), top and bottom of lock case closed,
According to DIN 18 251-2 class 2 requirements.
Function: The latch guard is activated automatically as soon as the door
is closed. In case of doors opening inward it can be used in conjunction
with standard electric openers since it guards the latch from only 2 mm