About Us

1400 NE 136th Avenue
Vancouver, Washington 98684, USA

Monday - Thursday:
6:30am - 5:00pm PST

Friday (no shipping):
6:30am - 4:00pm PST


Local: 360.260.2468
Toll-free: 800.736.0194
Support: 360.397.9999


Questions or concerns about our site? Let us know at feedback@usdigital.com.

About Us

US Digital’s optical encoders, magnetic encoders, and inclinometers are used in a wide variety of places: stepper motors, robotics, medical and lab diagnostic equipment, additive manufacturing, industrial automation, renewable energy and many other applications requiring position feedback. Motion control building blocks include incremental and absolute optical kit encoders, inclinometers, drives, interfaces and support products.

Vertical Integration

Counter to the popular trend of outsourcing, US Digital’s core products are designed, manufactured, supported and shipped from Vancouver, Washington, USA. Our highly automated processes allow us to make cost competitive, high performance products, meeting the customer’s need for reliable supply chain management. From prototype to production, our vertically integrated design and manufacturing capabilities provide customers best-in-industry lead times and support. With this infrastructure, US Digital is positioned to handle continuous growth well into the future.

Learn more about our state-of-the-art manufacturing facility, vertical integration and ability to customize encoder solutions in our corporate video: http://www.usdigital.com/company/videos/corporate-video


Our mission is to make our customers successful by inventing, manufacturing, and quickly delivering the most practical motion control components world-wide.

Quality Policy

US Digital strives to provide customers with consistently high quality products with little or no lead time. Processes are continuously analyzed for improvement opportunities that allow us to exceed our customer's expectations today and into the future.

Our History

US Digital began in 1980 in Los Alamitos, CA when founder David Madore could not find an encoder that would meet his design criteria. As a design engineer for a medical ultrasound company, he became aware of the obvious need for optical encoders that were practical, simple, reliable and available off-the-shelf. US Digital created their first incremental encoder and revolutionized the motion control industry with its user-friendliness and pricing. The original model is still in production today, along with a host of newly engineered products based on the same philosophy of practical, simple, reliable and ready to ship same day.

David relocated his family and the company to Vancouver, Washington, USA in 1990 and set up shop in his home for two years. To accommodate rapid growth, US Digital has relocated twice, most recently in June of 2006 to a state-of-the-art 118,000 sq. ft. manufacturing facility. We researched over a year for the best place to raise a family and run a business.

"Out of all the places in the US, Vancouver, Washington became the obvious choice. I walked into the Secretary of State's office in Olympia, asked for and received a corporate business license the same day."

-David Madore, founder and CEO