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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

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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

Rain or Shine, Your RIB Will Work Fine!

Not all relay enclosures protect against harsh weather. Luckily, we offer some that do!... Read More


Don’t be Interrupted by a Loss of Power

We have Uninterruptible Power Supply (UPS) Devices for your next application!... Read More


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

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