Vaisala Oyj

Regulatory Filings • Apr 21, 2016

Vaisala Corporation Stock Exchange Release April 21, 2016 at 9:00 a.m.

Vaisala's comparative orders received figures for 2015

Vaisala's ERP version change which was taken into use in the beginning of 2015 enhanced orders received reporting. These enhanced orders received figures are not fully comparable with the figures published earlier, mostly due to different translation of orders denominated in foreign currency. The table below presents Vaisala's orders received for the full year 2015 and for the four quarters of 2015 according to the enhanced reporting method.

Orders received

EUR million	1-3/2015	4-6/2015	7-9/2015	10-12/2015	2015
Weather	45.3	54.9	61.0	64.3	225.6
Controlled Environment	23.6	23.6	23.2	24.0	94.4
Total	68.9	78.5	84.3	88.4	320.0

Vaisala will publish its January-March 2016 interim report on April 26, 2016.

Further information

Kaarina Muurinen, CFO Gsm +358 40 577 5066 Vaisala Corporation

Distribution

NASDAQ Helsinki Key media www.vaisala.com

Vaisala is a global leader in environmental and industrial measurement. Building on 80 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 1,600 professionals worldwide and is listed on the NASDAQ Helsinki stock exchange. www.vaisala.com www.twitter.com/VaisalaGroup