P.O. DesMarais Company was founded in 1970 with the vision to provide quality instrumentation and process control equipment and to be our customer’s first choice for instrumentation and service. We offer a select group of the most trusted and respected names in process control and Instrumentation. Names like Draeger Fire and Gas, Sierra Instruments and the Yokogawa Corporation of America. To anticipate and respond to a customer’s specialized requirements in a timely, cost effective, high quality, and proactive manner that ensures customer satisfaction.