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  Home > Sound Level Meters >

Extech 407766 94/114dB Dual Point Sound Level Meter Calibrator
407766 94/114dB Dual Point Sound Level Meter Calibrator
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Our Price: $419.99

Availability:: Usually Ships in 24 to 48 Hours
Product Code: EXT-407766

NIST Certificate (Adds 7-10 days):



  • Calibrates and verifies Sound Level Meter operation
  • For use on Sound Level Meters with 0.5" or 1.0" microphones
  • Durable die-cast, aluminum housing
  • 1kHz sine wave at 94dB/114db is generated to an accuracy of 5% (frequency) and +/-0.8dB
  • 3 position switch (OFF/94dB/114dB)
  • Total Harmonic Distortion (THD)<2% at 94dB
  • Complete with two 9V batteries, carrying case, and screwdriver
  • LED indicator lights sup when power is on
  • Level position to select 94dB or 114dB

Specifications: Range / Accuracy

  • Frequency: 1000Hz / +/-5%
  • Sound Pressure Level: 94dB (407744); 94dB/114dB / +/- 0.5dB (94dB), +/-1dB(114dB)
  • Distortion: <2% Total Harmonic Distortion (THD)
  • Operating Temperature: 32 to 122deg.F (0to 50deg.C)
  • Power Supply: Two Heavy duty, alkaline 9V Battery
  • Power consumption: Approx. 10mA DC
  • Dimensions: 2.2" diameter x 5.6" long (50x127mm)
  • Weight: 0.75 lbs. (340g)

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Sound Level Meters
Reliability Direct, Inc.
900 W. Main Street
Ephrata, PA 17522
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