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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-633B Series Sound Level Meter is designed for extensive workplace noise measurements and environmental surveys.  It features octave band analysis.  The CEL-633C is designed to make occupational and environmental noise measurements quickly and easily and is also ISO9612...

The handheld aerosol monitor is a battery-operated photometer that provides real-time aerosol mass readings. It is ideal for clean office settings, general industry, construction, environmental and outdoor applications.Looking for quick reporting and easier data management?The...

The air quality inside buildings, particularly in restaurant kitchens, is an often-overlooked aspect of environmental health.

Environmental air monitors help identify risks to communities and workers from breathable particles.

Explore the world of sound level meters, sound meters, and noise level measurement tools. Learn how to select the best device for your needs.

TSI's IAQ-Calc™ Indoor Air Quality Meters are outstanding instruments for investigating and monitoring indoor air quality (IAQ).

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

Measures barometric pressure and has inputs for two K alloy thermocouples. Data logging included.