Card terminals allow you to retrieve information from a "failure" of the user - RFID card, tag, sticker or password. This information is in the controller and allows control of working time, absences and regular staff. The program automatically registers when staff enter and exit to / from work. In designing and building a system of working hours is possible using different identification readers such as RF cards, biometrics, PIN, and combinations thereof. RF reader is placed on the main entrance or other entry point as its data are transmitted to the managing computer in real time.