ET is Met One Instruments' 'Star' Distributor! Enviro Technology Services ET is a leading seller and elaser of equipment, systems and services covering the monitoring of ambient air quality (AQM), continuous emissions (CEM) and indoor air quality. The company also supplies cutting-edge analytical equipment for scientific, process and research monitoring including the monitoring of greenhouse and toxic gases. Early this year, ET was announced as one of the suppliers to the nationwide Automatic Urban and Rural Network (AURN), supplying new and replacement particulate monitors to be used at monitoring sites across the country. This included BAM 1020 particulate monitors for PM10, PM2.5 and PM coarse (PM10 and PM2.5 combined) as part of an eventual replacement programme of up to 100 particulate monitors.