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  • Datalogging function records up to 32,000 records
  • 30 to 130dB measurement range with ±1.5dB accuracy
  • Programmable integrating time, real time calendar/clock
  • SPL, SPL MIN/MAX, SEL, and Leq display modes
  • Linearity over wide range (100dB)

What's in the Box

  • Software (Windows compatible)
  • USB cable
  • Adjustment screwdriver
  • Battery and case


The Extech 407780A sound level meter has a built-in data logger and USB interface. It's analog and alarm output features can be used to connect with frequency analyzers, chart recorders, external data loggers, and sound level alarms. The 407780A meets IEC 61672-1, 60651/60804 Type 2 and ANSI S1.4 Type 2 specifications.

Extech 407780A Sound Level Meter Applications

  • Perform Leq and SEL measurements
  • OSHA compliance testing
  • Noise ordinance
  • Machine noise evaluation
  • Data storage for pertinent records

In Stock

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