VAISALA RECEIVES A MAJOR ORDER FOR UPPER AIR OBSERVATION SYSTEMS


The Vaisala Group has signed a significant contract with a long-
standing customer to supply upper air observation systems. Under the
contract, which is valued at about EUR 10 million, Vaisala will
deliver sounding systems along with radiosondes. The deliveries under
the contract will be carried within a year.

The Vaisala Group is a successful international technology company
that develops and manufactures electronic measurement systems and
equipment for meteorology, environmental sciences, traffic safety and
industry. Vaisala employs over 1,100 skilled professionals and
achieved net sales of EUR 183.5 million in 2001. Vaisala serves
customers throughout the world. In 2001, exports accounted for 96% of
net sales. Vaisala's A-series shares are quoted on the Helsinki
Exchanges (HEX).


Further information:
Olli Karikorpi, Finance Director   +358 9 8949 2215 or
                                   +358 40 777 2933
                                  

Vaisala Oyj