Vaisala Oyj

Report Publication Announcement • Oct 3, 2011

Disclosure 294176

Vaisala - Company Announcement

Invitation to Vaisala's Capital Markets Day

Vaisala Corporation Stock Exchange Release October 3, 2011 at 4:30 p.m. Analysts and investors are cordially invited to Vaisala's Capital Markets Day on November 10, 2011 starting at 8:30. The venue is Vaisala headquarters, Vanha Nurmijärventie 21, Vantaa Finland. The Capital Markets Day is arranged to share information on the company's strategy update, as well as business and technology developments. The presenters are Kjell Forsén, President and CEO, and other members of Vaisala's management. The participants will also have the opportunity to take part in a guided tour of the premises, including the weather radar laboratory, the cleanroom and the new eco-efficient head office building. The event will end with a lunch which will be served around 1 pm. Please register to the event by email to: liisa.ahtiluoto@vaisala.com or by phone + 358 40 730 7695. The event will also be available through live webcast and recording. Welcome! Kjell Forsén President & CEO More information: Kaarina Muurinen, CFO, email: kaarina.muurinen@vaisala.com, tel. +358 40 577 5066 Liisa Ahtiluoto, Communications Manager, email: liisa.ahtiluoto@vaisala.com, tel. +358 40 730 7695 Ditribution: NASDAQ OMX Main media ------------------------------ 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. We serve meteorology, airports, roads and other weather critical markets. Pharmaceutical companies, building automation and power sectors represent our industrial customers. Headquartered in Finland, Vaisala employs approximately 1400 professionals worldwide and is listed on the NASDAQ OMX Helsinki stock exchange. www.vaisala.com [HUG#1551630]