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| Brand | TSI |
|---|---|
| Origin | USA |
| Model | SOUNDPRO™ SE/DL Series |
| Frequency Range | 1 kHz (reference) |
| Measurement Range | 10–140 dB(A) selectable |
| Self-Noise Floor | ≤10 dB(A) (typical, per IEC 61672-1 Class 1) |
| Accuracy | ±1 dB (per ANSI S1.4 and IEC 61672-1) |
| Battery Life | >10 hours (alkaline, no backlight, basic SLM mode) |
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