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Four-eyes-principle: tailor-made security

Implement different levels of security, for example by using key code entry. Our security software asks for additional PIN code verification in order to classify an access check as successful. This makes the handing over of employee ID cards insufficient to gain unauthorized access to a room or building section. In combination with a biometric feature, this enables the highest security standards for your electronic locking system.

Sensitive building sections or rooms, such as server rooms, laboratories or vaults, require special security measures. This is why certain precautions should be applied here. The four-eyes-principle, also know as the two-man-rule, makes it easy to integrate these into your access control system, in order to achieve higher security standards. In this case, access to an area is only granted if a second person confirms the first person's identification attempt.

Discover our dual control system.
Key code entry and four-eyes-principle facilitate safe business premises.

Some advantages of special security measures

  • Key code locks or terminals for extra protection
  • Realization of high safety levels 
  • Implementation of various precautions for different indoor or outdoor premises
  • Combination with different identification methods

Key code entry or four-eyes-principle: The choice is yours

What kind of security measures are already implemented in your company? Do some rooms need special protection? We are your partner when it comes to the right security software. Request free information material or an informational callback with one of our experts.

Get in contact

Are you interested in making your security systems more effective and digital in order to implement professional authorization concepts? Get information about our security management software. We will gladly advise you on your way to digital business processes.

Further information

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Get more information about GFOS and our software solutions.


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We are certified

GFOS ist SAP S/4HANA zertifiziert
Die zertifizierte DATEV Schnittstelle von GFOS
ISO 27001 Zertifizierung - ID 9108647583