Fermax stand alone access control is capable of managing the activation of the electric lock installed at the entrance or exit to a zone, allowing access only to those users with an authorised ´key´. The different ´key or keys´ are programmed in the reader which is restricting access to the zone, so that they can activate reader to energize electric lock release by relay contacts. These systems control 1 single access. Doors are opened by nearing a proximity card to the reader. The cards must be previously authorised.