REMTECH is a company with offices in France and the U.S.A. which manufactures and maintains the REMTECH DOPPLER SODAR(s) and the RASS (Radio Acoustic Sounding System). Our DOPPLER SODAR systems measure remotely a vertical profile of wind speed, direction, thermal stratification and turbulence parameters (sigma W, sigma Theta) up to 400, 700, and 3,000 meters average altitude range depending on Sodar model.