Vaisala - Company Announcement

Vaisala's January-December 2012 Results Published on February 6, 2013

Vaisala Corporation        Stock Exchange Release          January 30, 2013 at
1:30 p.m.


Vaisala publishes its January-December 2012 results on Wednesday, February
6, 2013 at 2 p.m. (EET). The stock exchange release will be available on
Vaisala's website at www.vaisala.com after publishing.

The CEO's presentation will be published at www.vaisala.com/investors at 4 p.m.
(EET) on the same day.

Briefing
Briefing for analysts and media will be arranged in Hotel Kämp, Paavo Nurmi
meeting room, Pohjoisesplanadi 29, Helsinki, on Wednesday, February 6, 2013
starting at 4 p.m. (EET). Please register to the briefing by e-mail to
liisa.ahtiluoto@vaisala.com.

The presentation of Kjell Forsén, President and CEO, at the briefing will be
webcast live at www.vaisala.com/investors. It will also be published as a
recording at the same address by 6 p.m. on the same day.

More information:
Liisa Ahtiluoto, Communications Director
Tel. +358 40 730 7695

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:
OMX Nordic Exchange Helsinki
Main media
www.vaisala.com

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