About Us

Environmental Monitor Service is a leader in advanced technology opacity and dust monitor systems. We offer various models to fit every budget and suit any application. All of our monitors are built and tested at the factory to meet the site-specific dimensions provided by the customer. This and our user-friendly design ensure a quick, trouble-free installation.

Since 1990, companies worldwide have relied on EMS to monitor the amount of visible emissions, smoke, dust, or opacity from their process, including applications that must meet 40 CFR 60, appendix B, PS-1. We hope you will allow us to work with you on your next project and are confident that you will be satisfied with our monitors’ performance and worry-free operation for years to come.

Our History

Environmental Monitor Service was founded by James F. Cognetta, who has more than 45 years of experience in the opacity and dust monitoring industry. As a former owner/vice-president of Dynatron, Inc., he was with the company from its inception in 1972 until its sale in 1989. He and his partners pioneered much of the opacity and dust monitor technology that is the basis of equipment still used today.

In 1990, Mr. Cognetta took the knowledge and expertise he had gained during these years to his new company, Environmental Monitor Service. His vision was to provide his customers with the highest reliability, service, and support. Through his hard work and dedication, EMS has become synonymous with quality, dependable opacity, dust monitors, and factory and field service, which is second to none.

In 2010, Mr. Cognetta announced that the company would transition to the second generation and handed many of his responsibilities to his stepson Robert Zembruski. In addition, James has remained instrumental in the engineering and development of new products. We look forward to continued growth and new product development in the near future.

Environmental Monitor Service, Inc. offers a complete line of opacity and dust monitor systems for many applications, including boilers, crematoriums, ESP control, power utility, recovery boilers, and more. Additional offerings include engineering support during installation, on-site certifications, service, support after the sale, and preventive maintenance packages. EMS has been in the air pollution control and energy industries for over 30 years.

Our products are designed and manufactured at our facility in Meriden, CT. utilizing local vendor support. We strive to use as many USA-made goods as possible for faster response and support. This translates to the customers when fast turnaround or emergency delivery is required. EMS will continue to consider quality and reliability as the first components of our equipment and service.