2. Features and Functions: 1). Accuracty: +-1.5dB ( In Standard sound: 94dB@1KHz 2). Range of Measurement: 30~130dB 3). Frequency Response Range: 31.5Hz~8.5KHz 4).Frequency Weighting:A (Ambient Noise) Weighting 5). Response: Fast 6). Connec…View more