CO2 Pedometer. Be aware of the Co2 emission in this world. The ECO Co2 pedometer measures calories burned, distance travel, target steps and most of all the Co2 reduced by walking more instead of using vehicles for transport. Activities like driving a car creates a certain amount of Co2 from the engine burning fuel, depending on the fuel consumption and driving distance it is one of the reason the environment is being damaged. The ECO Co2 pedometer will be your first step to monitor and reduce your carbon footprint (Co2) with a new approach.