User key TQG406 Double-secured locking and access control. PROTEC² CLIQ normal user key cylinder group is intended for cases where access rights are stable (e.g. grand master key) or changes are very rare. Changing the access rights for normal user key is done by changing electronical openings inside CLIQ locks via programming key, since there is no list of authorised locks on the key. Electrical openings in locks are defined in the locking planning software when the system is ordered and preprogrammed to the locks at the factory. Used in cylinder group systems. Patented PROTEC² (T) key system. Specifications Key type Electromechanical Type of product Key Key length Standard Patent valid Yes ATEX approval No CLIQ cylinder group Yes Platform PROTEC2 CLIQ Close Programming key TQB403EXPROTEC² CLIQ programming key CONNECT. ATEX approved. Programming key TQGB403 EXPROTEC² CLIQ programming key cylinder group. ATEX approved. User key TQ407PROTEC² CLIQ dynamic user key.