Tenmars TM-100 Sound Level Calibrator
$179.95
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According to standard: ANSI S1.4 - 1984 and IEC 942 1988 class 2 Setting standard sound level at 94 dB and 114 dB 1/2 microphone adapter provided Low battery indicator Size :ψ48x125mm Weight: about 285g (with battery) Output frequency Test condition Accuracy 1KHz±4% Environment temperature:20°C Relative humidity:65% Atmospheric pressure:1013m bar ±0.5dB
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