TEI is a family business located in the Village of Cleves, Ohio. TEI employes skilled personnel who average over 20 years of experience each in the design, manufacture, and support of air pollution monitoring equipment. Our modern well-equipped factory, quality philosophy and experience have made TEI the supplier of choice for air pollution monitoring equipment. Now working on the fourth generation, TEI has state-of-the-art manufacturing capability and is looking into the future needs of today’s environmental professionals.

We are now producing our aniversary models proudly displaying this insignia: