Sure. Scan gauge is an OBD reader that you plug into the port on your car. It can read many parameters and you can add custom ones. I use it to monitor Coolant Temp, Exhaust Gas Temp, DPF filter temp and Boost. If you've ever shut your car off and the fan kept running for upwards of 10 minutes you interrupted a Regeneration cycle of the DPF. using this gauge I can check EGT and DPF temp before shutdown. If in a cycle they will be up 1100-1200 degrees. At that point I can leave it run until it finishes.