... :2002 Class 2 2.Frequency Range:20Hz~12.5KHz 3.Wide dynamic range 4.Small and light weigh FEATURES Latest Digital Signal Processing ... TechnologyWide Dynamic RangeHigh Precision Modular Design - on Demand Selection Wide Warm Design, Operating Temperature from -15 °C to ... m, 1 h, 2 h, 4 h, 8 h, 12 h, 16 h, 24 h1 s ~ 24 hRS232 Interface NO OptionalYES, with ...