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Extech 407744-NIST with NIST Certificate

Sound Level Calibrator

This model includes a NIST certificate to ensure that your new unit meets your quality standards from day one.

Order #: 407744-NIST

Mfg Part #: 407744-NIST

$454.99 USD

$400.39 USD


Ships in 2-3 weeks

Free shipping over $250

This product is available for shipping to United States, Canada and Puerto Rico only

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Overview :

Product Highlights

  • Calibrates and varifies 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 is generated to an accuracy of 5% (frequency) and ±0.8dB
  • 2 position switch (OFF/94dB)
  • Total harmonic distortion (THD) <2% at 94dB

Each Unit Includes

  • 9V batteries
  • Carrying case
  • Screwdriver
  • NIST Certificate

Accessories :