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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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From the Blog

What Time Delay Relay Do I Need?

Today, we discuss the differences in our time-delay relays!... Read More


What’s with the red LED?

In this Tech Tuesday, we explain what the red LEDs on our relays mean!... Read More


Happy Halloween from Functional Devices!

We love Halloween here at Functional Devices! This year, we added a pumpkin decorating contest in addition to our annual costume contest. Check out the results!... Read More


Measuring Power Supply and Transformer Output Voltage

In this week's Tech Tuesday, we talk about how to measure Power Supply and Transformer output voltage!... Read More


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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.