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Since 1969, Functional Devices, Inc. has been designing and manufacturing quality electronic devices in the United States of America. Our goal is to provide our customers with reliable and economic products along with world-class support from our sales and engineering experts.

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About

Learn more about Functional Devices' history and people.

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Products

Browse our catalog of building automation and lighting controls devices.

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Support

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From the Blog

BACnet Compatible AHU Fan Safety or General Purpose Logic Board

Learn all about our brand new RIBMNWLB-7-BC!... Read More


Latching RIBs

Here at Functional Devices, we have another type of relay you may or may not know about: latching relays.... Read More


Packing in the Relays

We have some great relays in boxes, but did you know we offer multiple individual relays in one box?... Read More


RIBĀ® Relays as 3 or 4-Way Switches

Learn about our SPDT and DPDT relays!... Read More

Careers

Interested in joining our team? Functional Devices is always on the lookout for great people! Check out our open positions and see if you might be a good fit.