Roadmaster Road Roughness Meter is a device used to measure road roughness, based on the IRI measuring principle developed by the World Bank. Roadmaster system consists of a central unit, one or two accelerometers, an odometer or a DMI and a laptop pc. It can easily be installed in practically any vehicle - a car, van or truck. Roadmaster can be provided with a GPS device and location data (latitude and longitude) is saved together with the IRI values, if desired.
Website link : http://www.al-engineering.fi/en/roadmaster.html