Vaisala - Company Announcement

The Board of Directors of Vaisala Corporation Resolved on Key Employees' Incentive Plan

Vaisala Corporation Stock Exchange Release 3 May 2012 at 2:25 pm.


The Board of Directors of Vaisala Corporation has resolved on a new share-based
incentive plan for the Group key employees for the year 2012. The aim of the new
plan is to combine the objectives of the shareholders and key employees in order
to increase the value of the Company, to commit key employees to the Company,
and to offer them a competitive reward plan based on long-term shareholding in
the Company.

The new Performance Share Plan's (Plan) discretionary period is calendar year
2012. The potential reward from the Plan will be based on the development of
Vaisala Group's profitability in calendar year 2012 and it will be paid partly
in the Company's series A shares and partly in cash in spring 2015. The cash
proportion will cover taxes and tax-related costs arising from the reward to a
key employee. No reward will be paid, if a key employee's employment or service
ends before the reward payment date.

The target group of the Plan consists of approximately 30 people. The rewards to
be paid on the basis of the Plan correspond to the value of an approximate
maximum total of 150,000 Vaisala Corporation series A shares, including also the
proportion to be paid in cash. The Annual General Meeting of Vaisala Corporation
has on 28 March 2012 authorized the Board of Directors to decide on a directed
acquisition of own series A shares and on a directed transfer of a maximum of
330,000 series A own shares without charge for the implementation of the Plan.

In connection to implementing the Plan the Board of Directors of Vaisala
Corporation has decided on acquisition of a total maximum of 150,000 own series
A shares, which decision has been published by a separate stock exchange release
on 3 May 2012.

Vantaa, 3 May 2012

Vaisala Corporation

The Board of Directors


Further information
Kjell Forsén, President and CEO, Tel. +358 400 757 948


About Vaisala
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

Distribution
NASDAQ OMX Helsinki Ltd.
Major media
www.vaisala.com



[HUG#1608478]