Compact half cylinder

The compact half cylinder is an electronic locking cylinder, which is especially characterised by its compact size. The compact half cylinder is also suitable for electronic access control on narrow frame doors because of the small handle diameter of 31.4 mm. The identification can be done by a passive transponder or by an active transponder with its own power supply.

The product offers additional advantages through its special security features. All the security components, such as the coupling, gears and motor are located in the protected area in the cylinder. The electronics and cylinder are rigidly coupled, the electronics unit is safely housed in the core of the cylinder. A mechanical drilling protection is also integrated by default. These security features additionally characterise the compact half cylinder as a security cylinder.

The outdoor version of the compact half cylinder with protection class IP66 also allows it to be installed outdoors and in building exit doors. The security version characterised by an advanced drilling and pulling protection is especially suitable for this purpose.

Transponder technology

MIFARE® (13,56 MHz)

Transponder technology

LEGIC® (13,56 MHz)

OSS Standard Offline

868 MHz Radio

Bluetooth® Low Energy technology

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


  • 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 60,000 actuations with one battery
  • Battery can be replaced using a battery replacement tool to open the cover
  • No wiring required
  • Modular design
  • Easy installation of the mechanical knob using grub screw
  • Various profile cylinder lengths available
  • Suitable for narrow frame doors
  • Outdoor version (IP66) available
  • Security version with advanced drilling and pulling protection available
  • Radio version available
  • Version with Bluetooth® Low Energy in preparation