Upper Air Radiosondes RS41 and RS41 E-models Providing high-quality atmospheric sounding data for the most accurate weather forecasting. World-Class Radiosondes World-Class Radiosondes Image 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 EBOOK | DOWNLOAD INFOGRAPHIC Pioneering cybersecurity Pioneering cybersecurity Image In today’s world, meteorological agencies face significant hybrid and cyber threats, such as GPS interference and cyberattacks, which can lead to inaccurate weather forecasts. Vaisala addresses these challenges by enhancing operational efficiency, ensuring data accuracy, and maintaining trustworthiness.Multi-GNSS technology in Vaisala’s standard RS41 radiosonde models uses data from multiple navigation satellites, increasing resilience against GPS interference by 60% on average* and securing accurate weather forecasts in challenging environments.Our industry-first message authentication ensures that radiosonde messages remain unaltered during transit to provide reliable weather data. Upgrade to Vaisala Cirrus Sounding System MW51 to unlock these advancements. * Based on Vaisala test soundings in Finland during 2024 comparing the radiosonde RS41 models with and without multi-GNSS. RS41 E-MODELS WITH BIODEGRADABLE MATERIALS RS41 E-MODELS WITH BIODEGRADABLE MATERIALS Image Vaisala Radiosonde RS41 E-models combine high-quality atmospheric sounding data with innovative, biodegradable materials to help reduce plastic waste originating from sounding operations.RS41 E-models are an industry first in biodegradable materials: All models include BioCover™, our patent-pending plastic-free and biodegradable radiosonde cover and insulation, and BioTwine™, our plastic-free and biodegradable unwinder twine. These new materials represent an overall reduction of 66% in plastics in the product. Tailored to the needs of meteorological organizations, RS41 E-models can replace standard RS41 radiosondes in operational use, with the same uncompromising performance and accuracy.Model ComparisonRS41-SGEBiodegradable and plastic-free BioCover™ and BioTwine™Excellent for synoptic soundings Temperature and humidity sensors GPS height, pressure and wind data Automated ground checks Standards-compliant, stable narrow band transmission RS41-SGPE Biodegradable and plastic-free BioCover™ and BioTwine™ Excellent for sensor based pressure needs Temperature and humidity sensors GPS wind direction and speed Automated ground checks DOWNLOAD PRODUCT SPOTLIGHT STANDARD RS41 MODELS STANDARD RS41 MODELS Image Our line of radiosondes offers different measurement parameters, sensor technology, and transmission methods to suit your particular application.Radiosonde RS41-SGExcellent for synoptic soundingsTemperature and humidity sensorsGPS height, pressure, and wind dataAutomated ground checksStandards-compliant, stable narrow band transmissionRadiosonde RS41-SGPExcellent for sensor-based pressure needsTemperature and humidity sensorsGPS wind direction and speedAutomated ground checksStandards-compliant, stable narrow band transmissionRadiosonde RS41-SGMImproved security thanks to radio silence and encryptionSuperior PTU measurement performanceAutomated ground checkRobust and easy to use designGPS for continuous wind data availability and height and pressure calculationStable narrow band transmission that complies with ETSI standard EN 302 054 DOWNLOAD PRODUCT SPOTLIGHT Resources: RS41 E-Models PRODUCT SPOTLIGHT Radiosonde RS41 E-models Discover trusted atmospheric sounding data with reduced waste. DOWNLOAD PDF EBOOK Radiosonde RS41 E-models 66% less plastic, same world-class data. GET EBOOK INFOGRAPHIC How RS41 E-models help reduce waste from sounding operations Vaisala Radiosonde RS41 E-models combine high-quality atmospheric sounding data with innovative, biodegradable materials to help reduce plastic waste originating from sounding operations. DOWNLOAD PDF WEBINAR Vaisala Radiosonde RS41 E-models Join our webinar for an inside look at the new Vaisala Radiosonde RS41 E-models, the first radiosonde with biodegradable cover and twine. REGISTER TODAY CASE STUDY Piloting radiosondes with reduced environmental impact In 2021, during a collaborative workshop between Vaisala and MET Norway, the environmental development of radiosondes emerged as a critical discussion point, particularly how the string used to connect the radiosonde with the balloon could be developed in a more sustainable direction. DOWNLOAD PDF DATASHEET Radiosonde RS41-SGE with BioCover Get all the details on this innovative radiosonde which is excellent for synoptic soundings. DOWNLOAD PDF DATASHEET Radiosonde RS41-SGPE with BioCover Explore this innovative radiosonde which is excellent for sensor based pressure needs. DOWNLOAD PDF WHITEPAPER Vaisala Radiosonde RS41 Unwinder with BioTwine The following white paper presents the comparison data of Vaisala BioTwineTM against PP-string unwinders. DOWNLOAD PDF TECHNICAL PAPER Vaisala Radiosonde RS41 E-models This technical paper presents the test results for BioCover materials in different environments and measurement accuracy. DOWNLOAD PDF APPLICATION NOTE Soundings Application Note WMO has published Final Report of the WMO Upper-Air Instrument Intercomparison 2022. LEARN MORE Resources: RS41 Standard Models 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 QUICK GUIDE A lighter footprint in flight How BioTwine supports sustainability in upper-air soundings. DOWNLOAD PDF INFOGRAPHIC 6 reasons Vaisala Radiosonde RS41 is the gold standard in upper-air observations Vaisala RS41 Upper Air Radiosondes provide world-class data to meteorological institutes and organizations, and are known for their accuracy, reliability, and ruggedness. DOWNLOAD PDF EBOOK Master upper-air meteorology with accurate radiosonde data and sounding systems Radiosonde data for numerical weather prediction. DOWNLOAD EBOOK WEBINAR Safe & sound weather data: Secure your soundings against hybrid threats Meteorological agencies face significant hybrid and cyber threats such as GPS interference and cyber-attacks, which can lead to inaccurate weather forecasts. Learn how hybrid attacks can impact meteorological data. LEARN MORE EBOOK New innovations to reduce the environmental footprint of upper- air soundings Explore recent innovations in environmentally- friendly radiosonde development that support sustainability across the full life cycle. DOWNLOAD PDF APPLICATION NOTE Soundings Application Note WMO has published Final Report of the WMO Upper-Air Instrument Intercomparison 2022. LEARN MORE 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 WHITEPAPER Vaisala Radiosonde RS41 Unwinder with BioTwine The following white paper presents the comparison data of Vaisala BioTwineTM against PP-string unwinders. DOWNLOAD PDF WHITEPAPER Met Office Intercomparison of Vaisala RS92 and RS41 Radiosondes See for yourself the RS41’s enhanced performance. DOWNLOAD PDF Blogs and additional information WEB PAGE Unwinder rigging instructions for the Vaisala Radiosonde RS41 Instructions for RS41 rigging to the balloon, hanger board and Totex parachute. LEARN MORE 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 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 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 Success stories Two storms at once - Met Éireann How the Irish meteorological service modernized Europe’s most westerly sounding station. LEARN MORE 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 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
