500 Cardigan Rd.
St. Paul, MN 55126
When you partner with TSI, you trust the global authority on performance measurement and precision instruments. Our experts set industry standards, and we lead the field in innovation. TSI collaborates with leading worldwide institutions to develop and manufacture the highest quality instruments used for biohazard detection, aerosol sciences, air flow measurement, indoor air quality, health and safety and fluid dynamics. With 50 years of experience in the field, we are recognized worldwide for designing and manufacturing precision instruments that deliver accurate, consistent results. TSI stations staff members across the globe to assist you with questions, product services and instrument calibration.