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Tenmars ST-120 Class 1 Sound Level Meter Calibrator
Tenmars ST-120 Sound Level Meter Calibrator Product Description.
- For 1/2-inch condenser microphone calibration
- IEC 60942:2003 Class1/ANSI S1.40-1984.
- Output sound level: at 94dB and 114dB.
- Frequency: 1000Hz ±1% Class1 A, C, Z;
250Hz ±1% (Z). - Sound pressure levels: at 94dB and 114dB.
- Harmonic wave distortion ±3%.
- Output feedback detection.
- Low battery indication
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