Extech 407736 Digital Sound Level Meter (Discontinued)

Delivers 1.5dB accuracy

Revel in a tool that delivers you the most precise measurements of sound with the Extech 407736 Digital Sound Level Meter. The meter measures from 35 to 130 decibels with a 1.5 decibel accuracy and meets ANSI and IEC Type 2 standards.

The meter features fast/slow response time, A/C weighting, Max Hold, and analog AC/DC output for connection to an analyzer or recorder. The tool comes complete with a microphone wind screen, a 9-Volt battery, and a carrying case for portability when you need it.


  • Delivers 1.5dB accuracy
  • Meets ANSI and IEC 651 Type 2 standards
  • 2 measuring ranges: 35 to 90dB (Low) and 75 to 130dB (High)
  • Max Hold with reset button
  • Built-in calibration check (94dB)
  • Analog AC/DC outputs for connection to an analyzer or recorder
  • Tripod mount ideal for field use


Range Low (35 to 90dB)
High (75 to 130dB)
Resolution 0.1dB
Weighting A & C
Calibration 94dB
Dimensions 9.5" H x 2.7" W x 1" D
Weight 7.6 oz (215g)

NIST Calibration

The Extech 407736 Digital Sound Level Meter is available with standard factory calibration or with NIST Calibration Certification (adds 5 days to product lead time). NIST certification offers a traceable certificate that satisfies ISO & other regulatory requirements for product accuracy traceability to nationally recognized reference standards.

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This product comes standard with a 1-year warranty.

Return Information

  • Return windows close 30 days after you receive your item.
  • You are responsible for obtaining a Return Merchandise Authorization, the cost of shipping, and potential restocking fees, if the item has been opened.
  • To start a return, or to view the full returns policy, click here.
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