Upper Air Radiosondes RS41 Providing high-quality atmospheric sounding data for the most accurate weather forecasting. World-Class Radiosondes World-Class Radiosondes When weather predictions are accurate, more people and their communities are protected from danger and socioeconomic impacts. Upper air soundings help provide a complete atmospheric weather profile, which enables weather organizations to make accurate forecasts. Vaisala RS41 Upper Air Radiosondes provide world-class data to meteorological institutes and organizations, and are known for their accuracy, reliability, and ruggedness. Vaisala’s radiosondes provide upper air weather measurement data including temperature, humidity, pressure, and wind speed and direction, and perform even in the most demanding weather conditions — all in a robust and easy-to-use design. Streamline launch preparations, reduce human errors, and lower operational costs of upper-air weather observations with Vaisala’s Radiosondes. DOWNLOAD BROCHURE Model Comparison Model Comparison Our line of radiosondes offers different measurement parameters, sensor technology, and transmission methods to suit your particular application. Radiosonde RS41-SG Excellent for synoptic soundings Temperature and humidity sensors GPS height, pressure, and wind data Automated ground checks Standards-compliant, stable narrow band transmission Radiosonde RS41-SGP Excellent for sensor-based pressure needs temperature and humidity sensors GPS wind direction and speed Automated ground checks Standards-compliant, stable narrow band transmission Radiosonde RS41-SGM Improved security thanks to radio silence and encryption Superior PTU measurement performance Automated ground check Robust and easy to use design GPS for continuous wind data availability and height and pressure calculation Stable narrow band transmission that complies with ETSI standard EN 302 054 DOWNLOAD BROCHURE Want the full picture when it comes to atmospheric weather? We’ve got you covered with upper air radiosondes that provide the most accurate, dependable, and high-quality data available. CONTACT US Resources PRODUCT SPOTLIGHT Upper Air Radiosondes Learn about the Vaisala family of upper air sounding devices, well known for their accuracy, reliability, and ease of use. DOWNLOAD PDF DATASHEET Radiosonde RS41-D Explore the capabilities of this radiosonde’s independent and passive windfinding, unwinder for consistent sensor boom positioning, and more. DOWNLOAD PDF DATASHEET Radiosonde RS41-SG Look into this model’s superior PTU measurement performance, stable narrow band transmission compliance, and more. DOWNLOAD PDF DATASHEET Radiosonde RS41-SGP Get the details you need regarding this model’s add-on sensor connector, GPS, informative LEDs, and more. DOWNLOAD PDF WEB PAGE Have You Found a Weather Balloon? Here’s what to do with it. READ MORE WEB PAGE Sounding Data Continuity Understand the effect on measurement outcome compared to the total uncertainty in sounding. READ MORE WHITEPAPER Met Office Intercomparison of Vaisala RS92 and RS41 Radiosondes See for yourself the RS41’s enhanced performance. DOWNLOAD PDF BLOG Accuracy Matters for Winter Precipitation Learn how winter weather is predicted and why you should take it easy on meteorologists. READ MORE BLOG Radio Soundings Even from the Harshest and Remotest of Locations Discover why automatic sounding stations are an important tool in making meteorological data available from difficult locations. READ MORE MORE DOWNLOADS RS41 Product Support & Scientific Downloads Click here to explore additional product resources for RS41. READ MORE Success Stories Radiosonde – The Invention That Made Vaisala SUCCESS STORY: You’ll have to go back to the 1930’s to learn about our interesting origins and this indispensable-to-this-day tool. READ MORE Scientific Research on Antarctica SUCCESS STORY: From harsh environments that include outer space, Vaisala’s products are found collecting and analyzing valuable data. Check out this autosonde installed in Antarctica. READ MORE Industry Applications Meteorology Protect people and communities from the impacts of day-to-day and extreme weather with the industry's most accurate and reliable weather observation solutions. LEARN MORE