Hold-open function 128 ProFix®2
The latch bolt controlled locking pin in the centre of the keeper keeps the electric strike unlocked until the door is opened, even after contact has been made.

Electric strike 128.13
Adjustable keeper (FF, FaFix®), Fail-locked, Hold-open function

Electric strike 128E.13
Adjustable keeper (FF, FaFix®), Mechanical unlocking (E), Fail-locked, Hold-open function

Electric strike 128.13B
Adjustable keeper (FF, FaFix®), Fail-locked, Hold-open function

Electric strike 128.53
Fail-locked, Hold-open function, Bi-directional diode

Electric strike 128E.53
Mechanical unlocking (E), Fail-locked, Hold-open function, Bi-directional diode

Electric strike 128.14
Fail-locked, Hold-open function

Electric strike 128E14
Mechanical unlocking (E), Fail-locked, Hold-open function

Electric strike 128EY14
Mechanical unlocking (E), Fail-locked, Hold-open function, Strong latch bolt spring