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Calibration sound source |
94dB@1KHz |
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Measurement range |
30~130 dB(A), 35~130dB(C) |
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Accuracy |
±1.5dB(Reference sound pressure standard,94dB@1KHz) |
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Resolution |
0.1dB |
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Frequency weighting |
A/C |
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Frequency response |
31.5Hz~8500Hz |
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Time weighting |
FAST/SLOW |
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Sampling rate |
FAST: 8 times/second SLOW: 1 times/second |
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Rated current |
70mA |
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Standby current |
5uA |
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Power supply |
3.7V lithium battery /1000mAh |
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Charging time |
1.5h |
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Duration of service |
8h |
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Data storage |
31,000 |
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Microphone |
1/2-inch polarization capacitance microphone |
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Operating temperature |
0~50℃ |
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Operating humidity |
10~80%RH |
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10~80%RH |
160*56*31mm(Excluding sponge ball) |
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Weight |
Approx 126g(Excluding sponge ball) |
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