Fail safe deadbolt lock

SL-120 Description SL-120A N.C. door position detection output Power Supply: DC12V SL-120B Door position detection and bolt position (N.C. & N.O.) output points Power Supply: DC12V SL-120U Door position detection and bolt position (N.C. & N.O.) output points Power Supply: DC12~24V Relock function Example: SL-120B has door position detection and bolt position (N.C. & N.O.) output points. Please note that this electric lock has an oval cylinder and its width is 5.8cm. Therefore