This website uses cookies
The web site is now storing only essential cookies on your computer. If you don't allow cookies, you may not be able to use certain features of the web site including but not limited to: log in, buy products, see personalized content, switch between site cultures. It is recommended that you allow all cookies.

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.

Can't find what you need? Let us help!

Reach our customer service, sales, or technical support teams, or find a distributor near you.

Our Policies

Read our Privacy, Quality, Terms & Conditions, and other TSI policies

Browse Policies

Quality Management Systems

Continually improving our processes, products, and services.

See QMS Certificates

Engineered Excellence for 50+ Years

TSI's history goes all the way back to 1961 and as far away as Mars!

Learn more

Login for Calibration or Service

Register or login to request service or calibration for your TSI instrument

Register or Login