page_title: Vaisala
section_title: New millennium
hierarchical_section_title: Vaisala / History / New millennium
caption_attribution_description: English: Vaisala RS92-SGPD (left) and Vaisala RS41-SGP (right) radiosondes. Both sondes were launched by weather station KNMI, De Bilt, Netherlands. The RS92 flew on 04-06-2015 00UTC, the RS41 on 05-02-2017 00UTC. The sondes were recovered after landing. Nederlands: Radiosondes van het type Vaisala RS92-SGPD (links) en Vaisala RS41-SGP (rechts). Beide sondes werden opgelaten door weerstation KNMI in De Bilt. De RS92 vloog op 04-06-2015 00 UTC en landde in Hengelo (Ov.). De RS41 vloog op 05-02-2017 00 UTC en landde nabij Marle (Ov.).
context_page_description: Vaisala Oyj is a Finnish company that develops, manufactures and markets products and services for environmental and industrial measurement.
  The major customer groups and markets are national meteorological and hydrological services, aviation authorities, defense forces, road authorities, the weather critical energy sector, life science and high-technology industries and building automation.
  Vaisala had over 1,800 employees and net sales of €348.8 million in 2018. Vaisala serves customers in more than 150 countries.
  The parent company Vaisala Oyj, domicile in Vantaa, Finland, is listed on the NASDAQ OMX Helsinki. Vaisala Group has offices and operations in Finland, the United States, Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Kenya, Malaysia, México, South Korea, Sweden, United Arab Emirates, and the United Kingdom.
context_section_description: CEO Pekka Ketonen was appointed in 1992. The company was listed on the Helsinki Exchanges in 1994. By then, it employed over 600 people. Further product developments included the introduction of GPS technology for upper air wind measurement, the Vaisala CARBOCAP CO2 sensor, and Vaisala DRYCAP sensor technology for industrial dewpoint measurement. New offices were established in France and China, and business acquisitions in aviation weather and surface weather further enhanced Vaisala's presence in the USA.
  The new millennium was kicked off with yet more business acquisitions - in wind profiling, lightning detection and aviation weather. U.S. manufacturing operations were concentrated in Boulder, Colorado. New product launches included a new radiosonde product family - the Vaisala Radiosonde RS92 (2003 - in production), as well as the Vaisala Weather Transmitter, which measures the six most essential weather parameters in one compact instrument.  This was much improved from the previous generation device and now included consumer cells to make up the battery due to energy saving techniques.
  CEO Ketonen retired October 1, 2006.  Vaisala's board of directors appointed Kjell Forsén the new company CEO.  Forsén last served as president of Ericsson Finland before joining Vaisala on September 18, 2006.
  Vaisala technology has played a part in space exploration for some 60 years, for instance the Mars Rover Curiosity and Schiaparelli EDM lander contain pressure and humidity sensors manufactured by Vaisala.
  With new developments in miniaturization, communications and sensors a new radiosonde the model RS41 (2014 - in production) was announced.  This model had again made improvements in specifications. Launch preparation made simple with the RI41 ground check device.  It is smaller and has pre-flight dry-point humidity sensor calibration achieved by heating the sensor to drive off contaminants. It is also available in a model (RS41-SG) without a pressure sensor, the pressure reading is derived from the GPS altitude, temperature and humidity readings.
caption: Vaisala RS92-SGPD (left) and its successor, the RS41-SGP (right).
exif: {}