Company Announcement 2 April 2008 at 10:30 (GMT +2) Vaisala Oyj's Capital Markets Day is held at Vaisala headquarters in Vantaa today on 2 April 2008. Plans are to publish a recording of the event as well as the presentations at Vaisala homepages (www.vaisala.com) on 2 April 2008 by 18:00. For further information, kindly contact Helena Marjaranta, Director, Corporate Communications +358 9 8949 2832 Vaisala Oyj