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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’s cleanroom facility environmental monitoring products with built-in redundancy provide the confidence you need.

Our instruments are optimized for ease-of-use, yet offer a range of advanced capabilities including data logging.

From quantitative fit testing equipment to mask integrity testing equipment, TSI helps you comply with regulated standards to ensure your workers' respiratory safety.

Our personal noise indicators and sound detectors make it easier to measure sound and noise levels in real-time, and determine the level of hearing protection necessary in a particular environment.

The QUESTemp° 44/46/48N utilizes a waterless wet bulb sensor designed for working environments where daily instrument upkeep is difficult.

The 7515 is a cost-effective IAQ meter for carbon dioxide (CO2) measurements.

Q-Trak Indoor Air Quality Monitor Model 7575 provides quick, accurate information to assess key indoor air quality, or IAQ, parameters.

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...

The Air Velocity Transducer 8455 (general purpose) is ideal for both temporary and permanent installations for air velocity measurements in research and development labs, manufacturing processes, and other applications.