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| THÔNG SỐ KỸ THUẬT | |
|---|---|
| Maximum Sound Level | 130dB |
| Minimum Sound Level | 30dB |
| Resolution | 0.1 dB |
| Weighting | A, C |
| Display Type | LCD |
| Battery Type | NEDA 1604 |
| Data Logging | Yes |
| Interface Type | USB |
| Maximum Frequency | 8kHz |
| Maximum Operating Temperature | +40°C |
| Minimum Frequency | 31.5 Hz |
| Model Number p | SM-20-A |
| Minimum Operating Temperature | +5°C |