Fail-Locked 19
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 19
Adjustable keeper (FF, FaFix®), Fail-locked
Electric strike 19E
Adjustable keeper (FF, FaFix®), Mechanical unlocking (E), Fail-locked
Electric strike 1905
Adjustable keeper (FF, FaFix®), Diode (05), Fail-locked
Electric strike 1905E
Adjustable keeper (FF, FaFix®), Mechanical unlocking (E), Diode (05), Fail-locked