Vaisala - Company Announcement

Vaisala exceeds previous guidance for 2012 net sales and operating result

Vaisala Corporation           Stock Exchange Release
January 11, 2013 at 3.30 p.m.


Based on the preliminary financial information regarding Vaisala's financial
statements for 2012, Vaisala Group exceeds its previously published guidance and
Vaisala now estimates that for the full year 2012 its net sales is EUR 290-293
million and the operating result is EUR 29-30 million.

During the last quarter 2012, in particular the Weather business area increased
its net sales more than previously expected due to increased product sales and
the operating result improved due to increased sales and higher margins in
delivery projects.

Earlier Vaisala expected its net sales in 2012 to stay at the same level as in
the preceding year. The operating result was expected to improve. Net sales in
2011 were EUR 273.6 million and operating result was EUR 16.1 million.

Vaisala will publish its financial statements for the accounting period January
1, 2012-December 31, 2012 on February 6, 2013 as per previous announcement.

Vaisala Corporation

Further information:
Kaarina Muurinen, CFO
Tel. +358 40 577 5066

Vaisala is a global leader in environmental and industrial measurement. Building
on 75 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 chosen weather-related and industrial markets.
Headquartered in Finland, Vaisala employs approximately 1400 professionals
worldwide and is listed on the NASDAQ OMX Helsinki stock exchange.
www.vaisala.com  www.twitter.com/VaisalaGroup

Distribution:
NASDAQ OMX Helsinki
Key media
www.vaisala.com

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