btscanner 2.0 is a completely revamped version of the original. With all the features of 1.0, version 2.0 now boasts the ability to do brute force scans of OUI ranges. Both inquiry and brute force scan types are able to utilise multiple dongles to increase coverage and the chance of finding a device. Additional features include the ability to export the scan results to a text file and improved sorting. A detailed information screen extracts HCI and SDP information, and maintains an open connection to monitor the RSSI and link quality. btscanner is based on the BlueZ Bluetooth stack, which is included with recent Linux kernels, and the BlueZ toolset. btscanner also contains a complete listing of the IEEE OUI numbers and class lookup tables. Using the information gathered from these sources it is possible to make educated guesses as to the host device type.