| Code | Accuracy | Frequency | Frequency weighting | Data output |
|---|---|---|---|---|
| 0011-FA25 | IEC 61672-1:2013 class 2 | 20Hz~12.5kHz | parallel A, C, Z weightings | yes |


Integral function: 1s~24h (adjustable)
Wide frequency range, large dynamic range, low background noise
Parallel time weight and frequency weight
Single range without shifting
Software is included: on-line monitoring, data storage
| Code | Accuracy | Frequency | Frequency weighting | Data output |
|---|---|---|---|---|
| 0011-FA25 | IEC 61672-1:2013 class 2 | 20Hz~12.5kHz | parallel A, C, Z weightings | yes |
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