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. We are …

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.

TSI supports our customers around the world with product service and calibration. If you own a TSI instrument, we hope you will take advantage of the benefits available to you.

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

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

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

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 imagines, designs, and develops products that solve measurement problems. We collaborate with colleges and universities, research groups, and businesses around the world to set the …

Requesting service for TSI / Quest products? Please download and print this Quest Service Request form. Requesting service for Casella product outside of North America and Canada, …