Electric strike 138.23 Product description Model with monitoring contact as potential-free changeover contact, actuated by the latch bolt. Overview of Advantages Radius keeper, FaFix®, adjustable by 3 mm Compatible with current mortise locks Compatible with ProFix® 2 striking plates Optimized sliding ramp for a smooth interplay with latch bolt Symmetrical design. DIN left/right as well as horizontal applicable Electric strike 138.13Electric strike FaFix® adjustment range, Fail-unlocked Electric strike 138.53Electric strike FaFix® adjustment range, Fail-unlocked,… Electric strike 138.63Electric strike FaFix® adjustment range, Monitoring conta…