| Microphone | ∅ 6mm condenser microphone |
| Measuring range | 30~130dBA、35~130dBC |
| Accuracy | ± 1.5dB (at reference tone pressure level, 94@1KHz) |
| Response frequency | 31. 5Hz~8KHz |
| Resolution | 0.1dB, <100dB; 1dB, >100dB |
| Frequency weighting | A weighting and C weighting |
| Time weighting | FAST/SLOW |
| Alarm mode | Built-in buzzer |
| Digital display | 3 Large LED digital display |
| Alarm value setting | Customizable settings |
| Max/min value | √ |
| Operating environment | 0°C~40°C，10~80%RH |
| Storage environment | -10°C~60°C， 10~70%RH |
| Power supply | USB DC 5V 1A |
| Product weight | 460g |
| Product size | 216x37x121mm |
| Quantity of carton | 10（PCS） |
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