Picking and scanning protection

4KS cylinders are equipped with several pins. It is not recognisable which pin is active in each case. With the freely moving locking elements in the plug it is virtually impossible to scan the cylinder in order to make a copy key. The springless function also protects against bumping.

Technical protection thanks to the necessary specialist expertise

The technical features of a 4KS key require extensive specialist knowledge and specialist machinery during production. This makes it extremely difficult to illegally copy keys.

Patent protection

All EVVA products are only available at authorised EVVA Partners. EVVA is authorised to take legal action against any kind of patent infringements. 4KS has a maximum patent protection until 2036.