... 0CComplies with IEC 61672 Class 1 Application FieldWidely use in Industrial Noise Surveys ; machinery, vehicles, ships and etcMay also used ... -30dB-28dB-25dB-50dB-30dB-30dBFrequency WeightingA,C,ZA,C,ZA,C,ZA,C,ZA,C,ZA,C,ZTime WeightingF,S,I,PeakF,S,I ... software authorized)Working Temperature-15°C~50°C-15°C~50°C-15°C~50°C-15°C~50°C-15°C~50°C-15°C~50°CspecialtyPrecision pulseBandwidthLow noise ...