Sound Level Meter Measures With Precision

Aug. 1, 1999

With a large 3-1/2-digit backlighted LCD with analog bar graph display measurements with 0.1 dB resolution, the Model 407750 sound level meter provides 1.5 dB accuracy. A built-in RS-232 interface and optional Windows software allow data to be captured on PCs. The background noise absorber mode for machine noise measurements filters ambient noise. Auto or manual ranging is 30 to 130 dB in six ranges. Features include A and C weighting, fast/slow response, maximum hold, min/max, analog output, tripod mount, and Electret condensor microphone.

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