AUTO TRACK GS XL is an online vehicle monitoring and control device with integrated GPS receiver and 3-band GSM module. Optional 802.11b/g module allows it to exchange data at public access points or at company\\\\\\\'s garage. AUTO TRACK GS XL has many options, where most distinctive are: -driver identification by fingerprint or Dallas iButton; -CAN bus for reading data directly from vehicle\\\\\\\'s systems; -RS485 accessory interface for connecting intelligent sensors; -RS232 interface for connecting messaging terminal or third party devices; -USB interface for reading log files, updating firmware and settings; -GSM accessory interface for connecting hands free; -SD card for storing logs and settings using native FAT file system; SD card allows storage of long history which could be retrieved via optional 802.11b/g interface or via USB. AUTO TRACK GS XL has optional Li-Ion backup battery and can operate for limited time when main power supply is missing.