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The CEL-633A Series Sound Level Meter is designed for extensive workplace noise measurements and environmental surveys. Featuring advanced datalogging functionality, audio and event capture, the CEL-633A Sound Level Meter has a simple user interface, and is designed to make...

The CEL-240 Series Sound Level Meter is Class 2 accuracy compliant with IEC61672. Ideal for walk through surveys and general occupational noise measurements. The 240 Series is an easy to use instrument with a high resolution graphical display. Implementing the latest digital...

TSI Aerosol Monitors enable real-time, direct-reading aerosol monitoring and analysis in a variety of indoor and outdoor applications

Available in the US and Canada. The PortaCount™ Respirator Fit Tester Model 8040-T Kit provides a consistent and objective quantitative respirator fit testing experience. The 8040-T Kit is bundled for your convenience. In addition to the 8040 Respirator Fit Tester, the Kit...

Ozone (O₃) Module for TSI OmniTrak™ Solution.This product is only available in the US, Canada, United Kingdom, European Union, Switzerland, Norway and Australia. 

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

The TSI BlueSky™ Air Quality Monitor is a lightweight, laser-based particle instrument designed to simultaneously measure PM2.5 and PM10 mass concentrations, as well as temperature and relative humidity. The device purchase includes a subscription to both TSI Link™ Software...

Our handheld DustTrak™ DRX Aerosol Monitor is a multi-channel, data-logging, laser photometer for real-time aerosol readings. Portable design allows you to measure dust, fumes, mists and smoke and is suitable for engineering control evaluations.Looking for quick reporting and...

ISO 17025 AccreditedThe Primary Calibrator 4046 has a range of 2.5 to 300 liters per minute (L/min).

NOTE: Now Available in the US, Canada, Australia, New Zealand, Guam and Puerto Rico. Coming soon to more regions. TSI Quest™ Edge 7 Personal Noise Dosimeter is a powerful and intuitive instrument designed for identifying hearing loss threats and informing the design of hearing...