TripMeter OBD shows used time, distance, used fuel and CO2 emissions from car (if car supports fuel calculations). Fuel consumption has correlation to carbon dioxide emissions. It is good to know your car's emissions because Carbon dioxide emissions from fossil fuels are causing global warming.
Used OBD protocol is by default Automatic selection. If you have connection problems, protocol can be changed via menu. If you do not know which protocol is supported try all protocols one by one. You can also use app INFOOBD, it displays which protocol(s) your car supports.
Application supports kilometers and miles. Results can be saved to the phone's file system. This app works with ELM327 OBD2 Bluetooth adapter connected to the car.
Download TripMeter OBD now to get more information how your car works and what are CO2 emissions.