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The term "Near-Reference" is tied to established air monitoring standards and methods.

Request calibration or service for your TSI instrument.

The Alberta Idealized Nasal Inlet (AINI) is a realistic nasal model designed to enhance in vivo testing for nasal spray products.

Flowmeter +DP, 300 lpm, O2, 22mm, 1/2 inchISO 17025 CertifiedRange: 0 to ± 300 Std L/min Accuracy: 2% of reading Calibration: O2 Includes Standard Accessory Kit

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

Ideally suited for workplace noise measurements and occupational noise assessments. The 620 series is compliant with international noise legislation, such as EU, OSHA and ACGIH. The CEL-620A sound level meter uses digital technology to give the highest standards of performance...

Range: 0 to ± 300 Std L/min Accuracy: 2% of reading Calibration: Air, O2, N2* Includes Standard Accessory Kit*Nitrogen gas is a correction from the air calibrationISO 17025 Accredited Version

Stand-alone photometers are used for custom made test chambers, e.g. in respirator certification testing, and for custom filter testing equipment. Light scatter photometers are the preferred choice for detectors in respiratory testing due to their very high dynamic range and...

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