Functional Devices, Inc. has been designing and manufacturing quality electronic devices in the United States of America since 1969. Current product offerings include RIB relays, current sensors, power control, enclosures, power supplies, transformers, and accessories. Functional Devices has established itself as a leader in the HVAC, Building Controls, Energy Management, Energy Savings, Lighting Controls, and Wireless industries.
Welcome to Functional Devices, Inc! We were founded in 1969 and have been designing and manufacturing quality electronic devices for the building automation market ever since. Take a look at our introduction video for a highlight of our company, products, and the customers who use our products every day.