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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

EnOcean® Enabled Wireless RIB® with 0-10 Vdc Dimming Control

Functional Devices, Inc. has recently released a new product to add to our ever-expanding line. Learn about it here, in a brand new Tech Tuesday!... Read More


Functional Devices Inc. to Stop Making RIBs, Start Making Toothbrushes Instead

Breaking news from FDI!... Read More


Where to Buy RIB® Relays

You've heard us talk a lot about our top quality, American made RIB® Relays, but where can you buy them? Find out in this week's Tech Tuesday!... Read More


The secret to what RIB stands for. . .

Learn the secret of what RIB really stands for!... Read More

Regional Sales Representative

Find yourself in an innovative and collaborative work place with a contemporary facility at Functional Devices, Inc. Our inclusive, family-l... View Job


Production Team Member

Looking for a manufacturing job in the central Indiana area? Come be part of our Production Team! Functional Devices manufactures electronic... View Job