Castle Sound Level Meter 20kHz 67 → 140 dB [GA257B]; 909-1897
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| THÔNG SỐ KỸ THUẬT | |
|---|---|
| Maximum Sound Level | 140dB |
| Minimum Sound Level | 67dB |
| DOSE Measurement | Yes |
| Weighting | A |
| Display Type | LCD |
| Battery Type | Alkaline, PP3 |
| Data Logging | Yes |
| Interface Type | USB |
| Maximum Frequency | 20kHz |
| Minimum Frequency | 1 Hz |