Vaisala to supply next generation dropsondes for National Oceanic and Atmospheric Administration in USA

Stock exchange release                        Vaisala
Oyj                       8 June 2009 at 10.00 am




Vaisala to supply next generation dropsondes for National Oceanic and
Atmospheric Administration in USA

Vaisala and the National Oceanic and Atmospheric Administration
(NOAA) have signed a 5 year supply contract for the delivery of next
generation GPS dropsondes used for hurricane reconnaissance,
hurricane research and storm track forecasting by the US National
Hurricane Center. The estimated value of the deal is USD 9.2 million.

"We are extremely pleased that NOAA has chosen Vaisala to supply
their next generation dropsondes," says Martti Husu, Senior Vice
President of Meteorology Business Area in Vaisala. "The new design of
the dropsondes has been developed by NCAR (National Center for
Atmospheric Research) and they selected Vaisala's calibrated
radiosonde sensor modules for use in the new design. The contract
strengthens the successful co-operation that we have with one of the
world's leading research institutes in this field."

Vaisala Dropsondes measure pressure, temperature and relative
humidity as well as profiles of the wind fields derived from GPS
signals. These specialized meteorological sensors are designed to
cover a complete range of atmospheric conditions.

Dropsondes are released from aircrafts flying at altitudes anywhere
from near the sea surface to their maximum operating capability, and
they are mainly used for targeted observations over the ocean. They
provide data for severe storm trajectory and intensity prediction.


Vaisala is a global leader in environmental and industrial
measurement. Building on more than 70 years of experience, Vaisala
contributes to a better quality of life by providing a comprehensive
range of innovative observation and measurement products and services
for meteorology, weather critical operations and controlled
environments. Headquartered in Finland, Vaisala employs over 1200
professionals worldwide and is listed on the NASDAQ OMX Helsinki.
www.vaisala.com

Further information
Martti Husu
Executive Vice President, Meteorology
Tel. +358 40 5483 423

Theresa Mary Fischer
Communications Manager, North America
Tel. +1 520 270 2712