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!

Learn More

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
Learn More

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.

Learn More