Class 2 Data-Logging SPL Meter PCE-428

- Accuracy class 2
- A, B, C and Z frequency weightings
- Fast, slow and impulse time weightings
- 1/1 octave band filter (optional 1/3 octave band filter upgrade - see accessories)
- Adjustable data-recording interval from 1 s ... 24 h
- Real-time numerical and graphical LCD display
- Adjustable alarm