Who We Are.

Opto 22 was founded in 1974 by engineers who designed a better solid-state relay and chose to build it in a non-corporate, flat organization. Now, over 45 years later, we're still privately held, lean, and run by engineers.

Contact us for free pre-sales engineering help from experienced engineers at our Temecula, California, factory and headquarters. All our products are designed, manufactured, and supported in the U.S.A. Call today!

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What We Do

With reliability, innovation, and quality as our benchmarks, Opto 22 gives you products that combine real-time I/O sensing and control with the connectivity many of today’s projects require: field sensors and devices, legacy PLC systems, software applications, remote equipment, and cloud services.

What is the Opto 22 difference?

  • Open standards
  • Made in the U.S.A.
  • Real people to talk to every time you call
  • Engineering and manufacturing staff that work together 
  • Guaranteed-for-life I/O
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Our Applications

Your application isn't the same as everyone else's. That's why you'll appreciate the flexibility, quality, and free customer support you get with Opto 22.

Our reliable, easy-to-use, open standards-based hardware and software products are counted on worldwide for industrial automation, process control, remote monitoring, data acquisition, and industrial internet of things (IIoT) applications.

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