Vaisala - Company Announcement

Vaisala updates its 2009 outlook

Vaisala Corporation                              Stock exchange
release                      13 October 2009 at 09:00 a.m.



Helsinki, Finland - In the interim report published on August 11,
2009, Vaisala estimated that its net sales in 2009 will grow slightly
compared to the preceding year. It was further stated that
uncertainty towards the rest of the year has increased due to the
schedules of project sales and deliveries as well as the development
of demand in the industrial segments.

Based on recent information Vaisala is decreasing its sales estimate.
The current view is that net sales in 2009 will be slightly lower
than in 2008. The main reason for this is lower than expected order
intake to be invoiced in the fourth quarter, especially in project
sales. There is still uncertainty relating to the rest of the year in
terms of project sales and deliveries and the development of the
demand in the industrial segments.

Due to the structure of Vaisala's customer base, the market situation
is expected to remain unchanged, and order cancellations are not
anticipated. The long term business outlook has not changed and
Vaisala is still fully committed to continuing the implementation of
its growth strategy.


Further information
Jouni Lintunen, CFO
Tel +358 9 8949 2215, mobile +358 40 579 0181
www.vaisala.com