Single key systems

Too many keys to manage? Have you lost control of duplications? Bunches of keys too heavy in your pocket? Access control in public, commercial and residential buildings guarantees flexibility, security and convenience.

Building window

With CISA master key systems, one key opens all accesses (doors, gates, garages…). Entrances can also be managed according to a hierarchy: only authorised people have access to certain areas. Master key systems with patented keys prevent the risk of unauthorised duplications: copies can only be obtained upon presentation of the Security Card.

Small businesses or commercial premises

Apartment buildings

Master key system (MK)

Every key opens its door.
The Master Key opens all doors.
With an electronic cylinder, access rights can be modified at any time.

Common entrance system (CE)

Each key opens communal areas and only your apartment door.

Private homes

Large organisations

Keyed alike system (KA)

One key opens all the doors in your home

Grand master key system (GMK)

The GMK system allows hierarchical access control


MK - Key plan