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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...

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...

No one knows more about a product than the manufacturer. Only TSI can perform multipoint calibration and repair services with original factory parts.

TSI offers flexible, conductive tubing in four sizes to accommodate most experimental setups.