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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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Products

Browse our catalog of building automation and lighting controls devices.

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From the Blog

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


Build-A-RIB Workshop Part 3 (Kinda): Build a RIB

Today, we're talking about how you can use some of our products to make your own RIB, especially a RIB with multiple relays in it.... Read More


A RIB Just For You

Do you need a custom Functional Devices product? Check out this Tech Tuesday to find out how to get it made!... Read More


Protect Expensive Mechanical Equipment with our Self-Calibrating Current Switch

There is one of our current switches that I doubt as many people know about. It is the Self-Calibrating Current Switch.... Read More

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.