Technical Parameters
| Technical parameter | Parameter value |
| Brand | SONBEST |
| Noise range | 30~130dB |
| Noise accuracy | ±3% |
| Communication Interface | RS485 |
| Default baud rate | 9600 8 n 1 |
| Power | DC6~24V 1A |
| Running temperature | -30~85℃ |
| Working humidity | 5%RH~90%RH |
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