TSI Incorporated, headquartered in Shoreview, Minnesota, is a global leader in precision measurement instrumentation, software services and workflow management.

At TSI we believe in creating a better world by helping protect people, products, and the environment and optimizing research and industrial processes on a global basis.

TSI creates a better world by helping protect people, products, and the environment and optimizing research and industrial processes. We conduct business with integrity.

Getting in touch with TSI is easy. Please complete the form below and a TSI representative will reach out to you shortly.

If you own a TSI instrument, we hope you will take advantage of the benefits available to you. For example, create a tsi.com account and track your instrument inventory and calibration due dates.

Accurate, Reliable and Quality Instrumentation At TSI, we stand behind our accurate, reliable and quality instrumentation. Browse our product categories to find the solution you need.

Getting in touch with TSI is easy. Please complete the form below and a TSI representative will reach out to you shortly.

While third-party labs can only verify your instrument, TSI can perform multipoint calibration and adjustments, update software, firmware and repair with original parts – all from certified factory …

TSI started in 1961 in Minneapolis, Minnesota. In 1976, TSI built a 32,000 square foot facility in Shoreview, Minnesota, a suburb just north of the capital city, St. Paul.

TSI leads in air quality measurement, advancing IEQ and IAQ technology with precise, reliable solutions used in schools, public spaces, controlled environments, and more.