Electric strike 118F.20 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 Universal voltage Compatible with DIN 18250 mortise locks Compatible with ProFix® 1 striking plates Optimized sliding ramp for a smooth interplay with latch bolt Symmetrical design. DIN left/right as well as horizontal applicable Bipolar diode Contact Us Electric strike 118F.10FaFix® adjustment range, Fail-locked, Bi-directional diode