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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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Browse our catalog of building automation and lighting controls devices.

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From the Blog

How to Automate External Garage Door Lights with RIB

Recently one of our awesome customers provided us with a really cool application write-up. Check it out here!... Read More


Announcing our New RIBU1C Multi-Packs!

Our most popular RIBĀ® Relay is now available in 5, 10, 25, and 100 count Multi-Packs!... Read More


4 Uses for Current Sensor and Relay Combos

relay current sensor combo thumbnail

This week's Tech Tuesday is all about current sensor and relay combos!... Read More


Low Inrush Current Relay Coil

A customer needed a relay device with low or limited inrush current on the relay coil. Check out this Tech Tuesday to hear how we helped him!... 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.