You are here: PRODUCTS / Electric Strikes / Fire and smoke protection / Fire protection / Model Range 143® ProFix® 1 Model Range 143® ProFix® 1 ProFix® is a combined system, consisting of a FaFix® electric strike with a latch bolt guide (latch bolt slide) integrated into the electric strike. Electric strike 143.10Electric strike FaFix® adjustment range, Fail-locked, TVS diode Electric strike 143.20FaFix® adjustment range, Monitoring contact, Fail-locked