Máy đo độ ồn PCE-432
Measuring range: 22 ... 136 db(A)
- A, B, C and Z frequency weightings
- Time weighting: Fast (125 ms), slow (1 sec) and impulse (35 ms), decay (1500 ms)
- Adjustable data-recording interval from 1 s ... 24 h
- 1/1 octave band filter (optional 1/3 octave band filter upgrade)
- Includes factory calibration certificate according to ISO 9001