The Energy Conservatory (TEC) is a renowned manufacturer and seller of the Minneapolis Duct Blaster and Blower Door, TEC WiFi Link, digital pressure and flow gauge, TrueFlow Meter and distributor for Flir IR cameras. TEC continues to set the standard for specialized air flow and pressure measuring devices used to monitor and analyze the complex interactions which determine building performance.

As a global enterprise leading the way to a more sustainable future, Thermo King is focused on keeping transported food and perishables safe and fresh; delivering efficient and reliable small transportation solutions; heating, cooling and automating homes and buildings; and enhancing industrial productivity.

Tjernlund Products provides quality engineered and manufactured products that solve exhaust, ventilation and heating/cooling problems. They provide Duct fans, draft inducers, power venters for horizontal vents, vent hoods, fresh and combustion air intakes, room-to-room transfer fans, exhaust and radon fans.

Toxalert is a manufacturer of gas detection systems. They provide carbon monoxide detectors, carbon dioxide detectors, toxic gas detectors, combustible gas detectors, IAQ sensors, refrigerant monitors and many more.

TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, indoor air quality, fluid dynamics and biohazard detection.