Vaisala Oyj engages in the development and manufacture of electronic measuring systems and instruments. It operates through the Weather and Environment Business Area; and Industrial Measurements Business Area segments. The Weather and Environment Business Area segment serves weather dependent markets and customers. The Industrial Measurements Business Area segment focuses on customers who operate in industries in which the monitoring of conditions is crucial. The company was founded by Vilho VÃ¤isÃ¤lÃ¤ in 1936 and is headquartered in Vantaa, Finland.