Met One Instruments Receives Large Purchase Order
from California Air Resources Board

April 16, 2000 (Grants Pass, Oregon) - MET ONE INSTRUMENTS announced today that it has received a purchase order from the California Air Resources Board (CARB) for twenty-nine (29) of its Model BAM-1020 Beta Attenuation Monitors worth more than $350,000. This brings to more than forty (40) the total number of such instruments ordered by various California air pollution control districts since September 1999. The BAM-1020 units will be used to monitor particulate matter of diameter less than 10 microns (PM10) and particulate matter of diameter less than 2.5 microns (PM2.5) by the state.
The decision to purchase the BAM-1020 Beta Attenuation Monitors was based, in part, on the results of a study sanctioned and funded by CARB and performed by personnel from the University of California at Davis. The results of this study may be obtained by downloading the document from Met One Instruments' Web site (www.metone.com) or by contacting Met One directly (541-471-7111).

Met One Instruments developed the Model BAM-1020 through a cooperation agreement with Sibata Scientific Corporation (Tokyo Japan), a pioneer in the theory of beta attenuation mass monitors. Met One Instruments later obtained US-EPA certification for the Model BAM-1020 as an Equivalent Method (EQPM-0798-122).

Although Met One Instruments has been successfully promoting the BAM-1020 worldwide since 1996, this order represents its largest single sale within the United States to date. "The CARB order is the beachhead for domestic BAM-1020 sales" said Dr. David Gobeli, Met One Instruments' Sales Director. "After successful startup and integration of the BAM-1020 units into the California air pollution monitoring network, Met One expects to see continuing increased domestic interest in this product." Gobeli said. "The CARB study demonstrates once and for all the superior accuracy of data generated by the BAM-1020 under all climactic conditions and in the presence of a wide array of particulate matter - even semi-volatile components. Data accuracy is the only true figure of merit in judging performance because without it nothing else matters. The CARB order validates this premise." Gobeli went on to say.

Headquartered in Grants Pass Oregon, Met One Instruments been in business for more than twenty years and is a world leader in the manufacture of meteorological, pollution monitoring, and clean room monitoring instrumentation.