Products by TSI Incorporated

The TSI PORTACOUNT® Pro and Pro+ quantitative fit testers eliminate the guesswork associated with tedious and error-prone qualitative fit test methods. No other fit tester can quantitatively fit test all types of respirators – gas masks, SCBAs, respirators, even N95 disposable (filtering-facepiece)...

The TSI Q-TRAK™ Multi-Function IAQ Monitor Model 7575 builds upon trusted technology to provide real-time, simultaneous display of up to five key IAQ parameters including temperature, relative humidity, CO2 and CO quickly and accurately. It also calculates dew point, wet bulb temperature, and...

TSI VELOCICALC® Air Velocity Meters are like having multiple meters for the price of one. These meters simultaneously measure and data log several ventilation parameters using a single probe with multiple sensors. They measure velocity and temperature and calculate flow. The VELOCICALC® Air...

TSI's DP-CALC™ Micromanometers allow you to easily make differential pressure measurements. The DP-CALC measures static, total, and velocity pressures as well as pressure drops across filters, coils, fans, and diffusers. Each model of the DP-CALC combines a lightweight and durable design with...

The TSI VelociCalc® 5725 is a high performance, yet simple to use, rotating vane anemometer. High accuracy and reliability make the VelociCalc 5725 the professional's ideal tool for measuring unevenly distributed or fluctuating flows through heating and cooling coils, diffusers, grilles, and...