ERX 5100 is the most complete biometrics based time management and access control device. This compact sized device able to function in a standalone mode, without any connection with PC. Besides, Time Management and or Time attendance function, ERX 5100 in a stand alone mode can be running as single door access control unit. The unit has its own lock control relay and auxiliary devices together with a request to exit input and door ajar input. For further informaiton, please feel free to contact me.