Biometric cards and readers utilise some aspect of a person's body to identify individuals. Physical characteristics include fingerprints, hand geometry, retinal patterns and facial characteristics.

Biometric readers are more expensive than standard card readers and system users can be reluctant to use them. 

Other issues concern delays due to processing time and False Accept and False Reject rates.

With a biometric there is often a large amount of processing required to establish whether there is a match between the individual at the biometric reader and the details stored on a potentially large database.  This can cause there to be a noticeable delay between presenting oneself to the reader and an accept/reject decision being communicated to the user.

The more strict a match between the biometric data presented to the reader and that stored on the database before an individual is matched as OK the greater the possibility that a valid individual is refused entry, due for example, to dirt on their fingers (a False Reject).  However if match criteria are loosened then there is a possibility that an individual will be validated who shouldn’t be as their fingerprint is similar to a valid individual (a False Accept).

Biometric readers are ideal where there is a small user population and a high security requirement.

Leigh Visual are able to offer a range of solutions from simple single door solutions to complex integrated multi site installations. With the full range of manufactures available to us we are able to design systems to precise specifications