Electronic double-knob cylinder

The double-knob cylinder is an electronic locking cylinder with a two-sided separate electronic authorisation. With the double-knob cylinder, access is controlled electronically from both sides of the door. Different access rights can be issued for both sides.

Various special lengths and an outdoor version with protection class IP66 are also available. The identification can be done by a passive transponder or by an active transponder with its own power supply (not in the system Clex public). In addition to various transponder technologies, a version of the electronic double-knob cylinder with Bluetooth® Low Energy is also available.

Transponder technology

MIFARE® (13,56 MHz)

Transponder technology

EM/HITAG 125 kHz

Dust and waterproof according to protection class IP66 and thus protected against powerful water jets.

Intrusion detection system (IDS) - connection possible

Clex prime

To the system page

Clex private

To the system page

Clex public

To the system page


  • Electronic authorisation from two sides
  • Time switches or weekly schedules are already integrated
  • Can be connected to an IDS module
  • Permanent engaging (toggle function) is possible without additional power consumption
  • Up to 80,000 actuations per side with one battery
  • Battery can be replaced only with battery replacement authorisation
  • No wiring required
  • Modular design
  • Disassembly possible only with disassembly card
  • Various profile cylinder lengths available
  • Outdoor version (IP66) available
  • Radio version available
  • Version with Bluetooth® Low Energy available