- 30-130 db in 3 ranges
- 0.1 db resolution
- 94.0 db calibration built-in
- Max hold: 0.7 dB
- Size: 8" x 3.2" x 1.4"; wt. 10 oz.
It uses condenser microphone for high accuracy and stability. An extra analog output signal can be used for control, data-analysis and recording. Widely used in audio system testing, heating and air-conditioning, workplace sound level testing, and highway environmental impact.