Dipstick stands on two specially designed support legs & operator simply walks the Dipstick along a survey l ine. The On- Board computer stores various data like IRI, Rut Depths, ElevationProfiles, California Profilograph Simulation, F-numbers & graphs etc. It is very useful for measuring landing roads surface’s profile at airport’s. It is approved by IRC for calibration of Bump Integrators and other high speed profilers like ROMDAS, ARRB & ARAN.