If You need to separate the employers and visitors in time and/or space, then You need an entrance system. You can track their movement online, You can check the work time from the database.
The entrance system's store the moving data in a center database, in case of malfunction the control panels can store this movement info themselves and later synchronize with the main server.
You can search and print the movement information in the database or You can forward to the payroll calculation.
The panels, proximity readers can be integrate in a IP network and You can manage different office's systems from one main centre.
For identification the entrance system can use PIN codes, proximity cards, biometric and these combinations.
Of course all these systems are protected with uninterruptible power supply.
If You need a smaller system up for 7 reader we can offer You a cheaper solution. In this case the alarm system and entrance system has the same control panel.