Buy Extech 407744 Sound Calibrator Microphones
| Extech 407744 94dB Sound Calibrator for 0.5\" and 1\" Microphones   |
Extech 407744 94dB Sound Calibrator for 0.5\" and 1\" Microphones Details :
- Calibrates and verifies Sound Level Meter operation
- For use on Sound Level Meters with 0.5\" or 1.0\" microphones
- Total Harmonic Distortion (THD) <2% at 94dB
- Meets IEC standard 60942 1997-11
- Battery test position with battery status LED indicates if battery is good
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