The patented ball bearing of the axle pin prevents the door sash from dropping. The ball bearing is used in all three hinge types of the PRO-DOOR range.

For keyless opening of the entrance door in three door leaf integrated versions of Transponder Plus, Code and Touch as well as the surface-mounted transponder solution.

As soon as the door enters the frame, it is locked - and triple locked. Three hooks and the locking bolt automatically operate. Extremely versatile in single and double sash entrance doors, and perfect for every requirement thanks to additional options. Such as with an E-opener for daily release, with a motor for opening by an access control system and also with a door opening limiter for restricted opening.