This high-precision, A/C weighted sound level meter has a range of 30dB to 130dB with ± 2.0 dB accuracy. Its fast response rate uses a time constant of 0.125s/time for general environmental measurement. Its slow response rate uses a 1s/time constant, which is used for environmental measurements with relatively large changes in noise levels.

Also known as a sound pressure level (SPL), decibel (dB) meter, or noise meter.

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