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Graphic Display Sound Meter, Certified
Meters feature a large bar graph display, A and C decibel frequency weighting scales, min./max., fast or slow response, AC or DC output, auto-power-off, and low battery indicator Meets ANSI S1.4 Type 2 and IEC 61672-1 Class 2. N.I.S.T. traceable certificate of calibration available, or calibrate in compliance with OSHA anytime using optional Acoustical Calibrator 850016. Covers 30 ~ 130 dB in the A and C scales with a resolution of 0.1 dB, with an accuracy of 1.4 dB (ref 94 dB@1KHz).