Electronic cylinder for contactless smart cards (removable on both sides). ON-LINE management. To replace mechanical cylinder. Interoperable with 13,56 MHz or 125 KHz technologies. Compatible to all (DIN/SCAN) type European mortise locks. Indoor use. Basic length 30/30mm, increasable in steps of 5mm (options for pricing). main electronics (RFID+radio) in outer knob. secure electronics inside cylinder core. RFID reader in outside to get in. Free out (knob without RFID inside). Being REMOVABLE ON BOTH SIDES, allows the replacement of the internal battery without opening the door to remove the cylinder. Reading Technologies Options X: 1=125 KHz EM/HID® Prox™, 3=HID® iCLASS™, 6=DESFire®, 7=MIFARE® Plus (availability for LEGIC® and SEOS™ options with additional cost). Lenght Options for Door Screw Y: (-)=No Screw, 0=85mm, 1=60mm, 2=70mm, 3=M85.