Vaisala Stock Exchange Release, 5.2.2009 at 2.00 pm Vaisala's 2008 financial results published on February 13, 2009 Vaisala publishes its 2008 financial results on Friday, February 13, 2009 at 9 am. The stock exchange release will be available on the company website at www.vaisala.com. CEO's presentation will be published at 11.00 am (GMT +2) on the same day at www.vaisala.com/investors. Briefing Briefing for analysts and media will be arranged in Hotel Kämp, Paavo Nurmi meeting room, Pohjoisesplanadi 29, starting at 11.00 am. Please register to the briefing by email to Helena Marjaranta, helena.marjaranta@vaisala.com. Webcast A live webcast of the presentation of Kjell Forsén, President and CEO of Vaisala, will be sent starting at 11.15 am (GMT +2). The webcast will be available at http://vaisala.magneetto.net/. The webast will be recorded and published at www.vaisala.com/investors at 1.00 pm (GMT +2) on the same day. More information: Helena Marjaranta, Senior Vice President, Communications, tel. +358 40 581 9102 --------------- Vaisala is a global leader in environmental and industrial measurement. Building on more than 70 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 meteorology, weather critical operations and controlled environments. Headquartered in Finland, Vaisala employs over 1200 professionals worldwide and is listed on the NASDAQ OMX Nordic. www.vaisala.com