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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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From the Blog

Where to Buy RIBĀ® Relays

You've heard us talk a lot about our top quality, American made RIBĀ® 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


Controlling Multiple Loads with One Input: I/O Expanders

Our I/O expanders can be used in a wide variety of applications to help improve efficiency and consolidate controls. Click here to learn more!... Read More


Using an SIB02S as an Override Switch

The ability to manually override a load ON or OFF in a system is not only desirable for many maintenance workers, sometimes it is required. That is why Functional Devices... 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