+1 541-471-7111Contact Sales

The Standard of Precision Air Quality and Meteorological Monitoring

Sense and Respond with Confidence.

Precision Monitoring Solutions

For a Wide Range of Industries

Our long-established reputation and American-Made air quality monitoring devices and meteorological instruments have made Met One Instruments Powered by Acoem the preferred choice for Regulatory Agencies, Environmental Consultants, Engineers, Scientists, Emergency Responders, Natural Disaster Response Professionals, Firefighters, and Employee Health and Safety Managers in many industries. Our air quality monitoring instruments provide highly accurate and reliable data to help customers make informed decisions.

We Work With...

Certified by:


Met One Instruments Powered by Acoem

Met One Instruments Powered by Acoem designs and manufactures precision particulate measurement devices, meteorological instruments, and systems for customers looking to meet national, local, and industrial standards for regulatory compliance, health & safety, quality of life, or other applications.

As one of the most established and experienced instruments manufacturers in the U.S., known for high-quality measurement instruments used by governments, research institutes, and industry worldwide, Met One Instruments Powered by Acoem sets a high standard by which all others are measured.

Contact Learn More  

  • Superior Service

    A commitment to customer service was embedded in Met One’s company culture at the outset and remains a top priority today. Our trusted Service Department provides superior after-sales support for the entire lifetime of the product, including but not limited to: device calibration on the front and back end, in-house or online customer training, personalized troubleshooting assistance, device repair, and routine maintenance.

  • High Quality

    Met One Instruments Powered by Acoem has an established reputation for manufacturing high-quality products with long service life, even in the most rugged and extreme weather conditions. Originating as a meteorology equipment manufacturer, our engineers have acquired extensive experience in how severe weather conditions can affect the operation of electronic and mechanical components. Our weather protection designs have held up for as long as 30 years in the field. Maintain peace of mind knowing Met One devices are made in America under strict quality control guidelines by experienced technicians who take pride in their craftsmanship. We build our products to last.

  • Customization Options

    Providing innovative custom design solutions for our customers has always been a priority at Met One Instruments Powered by Acoem. Interested in a product but it does not fit your exact specifications? Need a different mounting style? Have a new application that has never been done before? Please reach out, and our engineering department will provide. We proudly enjoy solving problems by creating new and innovative solutions for our customers.

  • Reliability & Accuracy

    All fabrication, manufacturing, and testing are done in Southern Oregon by professional technicians who strictly adhere to ISO procedures and guidelines, ensuring a consistently reliable product every time. Prompt and timely delivery is guaranteed with in-house metals and fabrication shops. Rather than relying on outside vendors, we have in-sourced to create a streamlined production process that benefits the end customer with shipping times that are nearly half those of our competitors. Our skill and consistency in production combined with high-quality components guarantee the most accurate data in air quality monitoring. Meeting or exceeding EPA standards, you can count on Met One Instruments, Inc. to provide the most reliable and accurate measurement devices.

  • OEM Systems Configuration

    Met One Instruments Powered by Acoem offers several versions of our light-scatter particle and mass monitor “engines” for OEM applications where particle count and mass concentration are included with other measurements and system components. We also offer a full complement of support components to help our OEM customers integrate our components into their products.

    In addition to our meteorological sensors and support equipment, Met One will assist any client in configuring a meteorological system for their specific application. Our turn-key custom systems include sensors, data processing/logging, and communications, including cloud data handling and data display. We offer solar power and tripod/tower mounting options. Our OEM and custom systems are supplied with full documentation and wiring diagrams with available support from our Service department.

Contact Us