Wireless cylinder for proximity smart cards. For replacement of mechanical cylinder. Version V3: Compatible with 13.56 MHz technologies (iCLASS™, SEOS™, MIFARE™, DESFire™ types). Indoor use. RFID reader only to enter, with removable metal inner knob. VsD certification options: V (Values: "-"=No, "0"=Yes). Standard 30 / 30mm metric, in 5mm increments. Options of external / internal cylinder metric: AB (Values of A and B: "0" = 30mm, etc ... up to 120mm, with cost increase, see options). Profile options: P (Values: "0" = EURO, "2" = SCAN, "3" = SWISS). Through-bolt length options: Y (Values: "-" = No Screw, "0" = 85mm, "1" = 60mm, "2" = 70mm, "3" = M85).