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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

Sensing Current Below the Threshold

At Functional Devices, Inc., we manufacture multiple types of current sensors. We have current switches, current transducers, and relay/current sensor combo devices, and ... Read More


RIBĀ® Brand Refresh Announcement

Functional Devices is pleased to present the refresh of our RIB® brand to now include Lighting Controls in addition to Building Automation!     We are excit... Read More


How to Override a 0-10V Dimmed Fixture with an Integral EM Battery

Thanks to Michael Merchut from Graybar Phoenix for this great application idea!... Read More


Introducing our Brand New Phase Angle Dimmer

Introducing our brand new Phase Angle Dimming device, the LR01F600!... 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.