
Audio/Video Entry systems
Audio (Intercom) or Audio + Video combination arrangements may be used where human control of access is required from a remote control point. This suits a busy reception desk or a remote office location which is dedicated for staff and visitor control.

Biometric Readers
Biometric systems are used where very high security is required to a particular area e.g. into a Server Room.
Access is restricted by use of voice, finger print, palm print, iris or retina recognition, this stored information is then compared against the person whenever access is requested to achieve correct access control into the restricted area.

Digital Keypads
This is a relatively simple method of access control and uses a number of pre stored digits which when input in the correct sequence releases the door.