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1kHz Professional Calibrator for 0.5" or 1.0" Microphones

Extech 407744 Sound Level Calibrator - Large image

Extech 407744 94dB Sound Level Calibrator


  • 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
  • 1 kHz sine wave at 94 dB is generated to an accuracy of 5% (frequency) and ±0.8 dB
  • Total Harmonic Distortion (THD) <2 % at 94 dB
  • Battery test position with battery status LED indicates if battery is good

See: Extech Sound Level Meters

Price: $299.99
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