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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

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


Rain or Shine, Your RIB Will Work Fine!

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