Double-secured locking and access control. PROTEC²CLIQ cylinder with small thumbturn for solid doors mortice lock cases. Lock is operated with an electronic CLIQ key from outside and by thumbturn inside the door. Cylinder hardened steel. Adjustable during installation to match different door thicknesses. Product is tested and certified according to the most demanding standards SFS 5970, SFS 7020, FA security grade 1. Patented PROTEC²(T) key system.