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The Airflow™ Instruments Positive and Negative Duct Accreditation (PANDA) System PAN341 Series provides contractors, commissioning engineers, and research and development technicians with the best in class choice of test equipment to quantify air leakage in ductwork and other...

The Q-Trak XP Indoor Air Quality Monitor Model 7585 unites gas and particle measurements with traditional IAQ parameters—in one lightweight, handheld instrument that is easy to use, configure and calibrate in the field. Designed for IAQ and industrial hygiene professionals...

The DustTrak™ II 8530 EP Aerosol Monitor is ideal for continuous monitoring of construction sites and fugitive emissions at environmental sites. It monitors aerosols such as dust, smoke, fumes and mists.Looking for quick reporting and easier data management?The new TSI Link...

The SidePak™ AM520 Personal Aerosol Monitor is designed to take measurements from the workers breathing zone to provide both real-time aerosol mass concentration readings of dusts, fumes, mists, smoke and fog; as well as a new response concentration that can display a...

The 9600 VelociCalc is a portable, handheld Multi-Function Ventilation and IAQ test instrument featuring a menu-driven user interface for easy operation. The high-resolution color screen displays multiple measurements simultaneously in real-time with on-screen prompts to guide...

TSI Link™ for Respiratory Protection software subscription. It includes access to Program Management Portal and API Integration for PortaCount™ Respirator Fit Tester users. 

The EVM Series Particulate Mass Concentration and Air Quality Monitors simultaneously measure particulates and gas concentration in real-time.