- 40-130dB Meter featuring large LCD display with analog bargraph
- ±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
The Extech 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.