Fail-unlocked 138
With its diminutive dimensions of 66 mm x 16 mm x 25.5 mm, effeff's 118 electric strike is the smallest standard electric strike in the world.

Electric strike 138
Adjustable keeper (FF, FaFix®), Fail-unlocked

Electric strike 138RR
Adjustable keeper (FF, FaFix®), Monitoring contact (RR), Fail-unlocked

Electric strike 13805
Adjustable keeper (FF, FaFix®), Fail-unlocked, Bi-directional diode

Electric strike 13805RR
Adjustable keeper (FF, FaFix®), Monitoring contact (RR), Fail-unlocked, Bi-directional diode

Electric strike 138.500
Fail-unlocked, Drill hole offset by 1 mm

Electric strike 138530
Fail-unlocked, Drill hole offset by 1 mm

Electric strike 138.504
Fail-unlocked, Drill hole offset by 1 mm

Electric strike 138505
Fail-unlocked, Bi-directional diode, Drill hole offset by 1 mm