EXTECH 407766, 94/114dB Sound Calibrator


Price $429.99
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Extech Test & Measurement

1kHz Professional Calibrator for 0.5" or 1.0" Microphones

This 1kHz 94/114dB professional sound calibrator is for 0.5 in. or 1 in. microphones. Calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB/114dB to an accuracy of 5% (frequency) and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC standard 60942 1997-11. Comes complete with two 9V batteries, carrying case and screwdriver.


  • Calibrates and verifies Sound Level Meter operation
  • LED indicator lights up when power is on
  • Level position to select 94dB or 114dB
  • 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 and ±0.5dB (94dB)/±1.0dB (114dB)


Range | Accuracy

  • Frequency: 1000 Hz | ±5%
  • Sound Pressure Level: 94dB/114dB | ±0.5dB (94dB), ±1dB (114dB)
  • Distortion: <2% Total Harmonic Distortion (THD)
  • Operating Temperature: 32 to 122°F (0 to 50°C)
  • Power Supply: Two Heavy duty, alkaline 9V Battery
  • Power consumption: Approx. 10mA DC
  • Dimensions: 2.2" diameter x 5.6" long (50 x 127mm)
  • Weight: 0.75 lbs. (340g)