Access Control Systems range from small single door systems through to highly sophisticated software based computer systems controlling single or multiple sites. Software based computer systems provide information on movement of staff and give full control of time and attendance of personnel. A software based computer system allows the administrator to add or remove users and remotely open doors at the click of a button. Different technologies are available dependent on the level of security required and client preferences. Reader technologies range from simple magnetic cards to more sophisticated infra-red, proximity, fingerprint recognition and retina scanning units. Readers are fitted locally to secure a door or access point and allow or deny access, contact Impulse Fire & Security for a Free quotation or advice.