วันจันทร์ที่ 14 พฤษภาคม พ.ศ. 2555

new product Extech 407744 94dB Sound Calibrator for 0.5" and 1" Microphones For use .


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Extech 407744 94dB Sound Calibrator for 0.5


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Extech 407744 94dB Sound Calibrator for 0.5



Product Description

Battery test position with battery status LED indicates if battery is good === Includes: (1) Vane Sensor with 3.9ft cable; (1) 9V Battery; (1) Protective Rubber Holster; (1) Carrying Case


  • 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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