Fail-locked 118® ProFix® 2 The door can only be opened while contact is made. When operated with an alternating current, a buzzing sound can be heard. There is no buzzing sound with direct current operation. Electric strike 118.13Electric strike FaFix® adjustment range, Fail-locked Electric strike 118E.13Electric strike FaFix® adjustment range, , Fail-locked Electric strike 118.23Electric strike FaFix® adjustment range, Monitoring conta… Electric strike 118.63Electric strike FaFix® adjustment range, Monitoring conta…