Máy đo độ ồn Extech 407730 ( Digital Sound Level Meter )

Mô tả

40-130dB Meter featuring large LCD display with analog bargraph

The 407730 sound level meter measures from 40 to 130dB with an accuracy of 2dB. The digital display offers a 0.1dB resolution and features a fast responding analog bar graph. User can choose A or C weighting. Max Hold captures highest reading. Includes microphone wind screen and four AAA batteries.

  • ±2dB accuracy with 0.1dB resolution
  • A+C weighting
  • AC analog output
  • Record Max/Min values over time
  • Utilizes 0.5″(12.7mm) electret condenser microphone

 

 

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