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Home All Our Brands Extech Instruments Sound Level Meter Extech 407766 Sound Calibrator 94/114dB
Extech 407766 Sound Calibrator 94/114dB

Extech 407766 Sound Calibrator 94/114dB

Item #: EXT100
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The Extech 407766 94dB/114dB Sound Calibrator is for use with all of Extech's sound level meters; it calibrates and verifies sound level meter operation. This professional calibrator for 0.5" or 1.0" microphones comes in a durable, die-cast, aluminum housing to ensure it will stand up to wear and tear from constant use in the field. Scroll down to see more Extech 407766 sound calibrator features and specifications.

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The Extech 407766 94dB/114dB Sound Calibrator calibrates and verifies sound level meter operation and meets IEC standard 60942 1997-11.

Features - Extech 407766 94dB/114dB Sound Calibrator

  • 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and 0.8dB
  • For use on sound level meters with 0.5" or 1.0" microphones
  • Total Harmonic Distortion (THD) is less than 2% at 94dB
  • LED indicator lights up when power is on
  • 3 position switch (OFF/94dB/114dB)
  • Level position to select 94dB or 114dB

Technical Specifications

Frequency Range: 1000 Hz
Accuracy: 5%
Sound Pressure Level Range: 94dB/114dB
Accuracy: 0.5dB (94dB), 1dB (114dB)
Operating Temperature 32 to 122F (0 to 50C)
Power Supply 2 heavy duty, alkaline 9V batteries
Dimensions 2.2" diameter x 5.6" L
Weight 0.75 lbs

Model - Extech 407766 94dB/114dB Sound Calibrator

The Extech 407766 94dB/114dB Sound Calibrator is available with standard factory calibration or with NIST Calibration Certification (adds 5 days to product lead time).





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