Blocks entry/ access to un-authorised persons. Restricts access only to your authorized staff in certain areas, by identifying them by their finger-prints or RF ID cards. Can be used for "attendance and payroll".
These systems read the identity of an individual and ALLOW OR DENY ACCESS to them through a particular door, as per the programmed setting. The identity is sensed by FINGERPRINT reading or by using an RF ID-card or PROXIMITY CARD.
Further these systems can be used to mark the ATTENDANCE of EMPLOYEES and used to feed data to the payroll software on computers.