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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

Employee Spotlight: Sam Klennert

How long have you been at Functional Devices? I’ve been working full time here for a little more than 2 years now. What made you want to become an engineer? Growing... Read More


B.I.N.G.O. with R.I.B.®

Dear Blog Readers, We have recently been on a B-I-N-G-O kick here at RIB, where we have played company-wide games. That got me to thinking about an acrostic for our produ... Read More


Measuring the Voltage of Floating Outputs

All Functional Devices’ AC power supplies, stepdown transformers and isolation transformers have a floating output. The outputs are said to be floating because they... Read More


Staying Safe from High Voltage with Remote Current Sensor & Relay Combos

Problem Here’s a scenario that may be familiar: the current of a high voltage load needs to be monitored with a current sensor, and the current sensor needs an inte... Read More


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


Outside Sales

How do you want to spend your work week? Surrounded by creative minds working together at a privately-owned business? Traveling to customers... View Job