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• Measure of Sound Level Pressure (SPL)• 0.1dB resolution• Selection manual of range• MAX/MIN display• Frequency Weighting A and C• Integration FAST/SLOW
• Measuring range 25-140dB • "Peak", "Fast", "Slow" and “Impulse” integrations • “A”, “C” and “Z (linear)” frequency weighting • “Peak+” and “Peak-“ measurement in C weighting • Spectral analysis with octave and 1/3 octave digital filter (HT157)• Class 1 portable calibrator • Mini-USB output for connection to PC