sound level sensor for ball mill portable db
Sound Level Meter / Noise Level Meter PCE . PCE322A is a handheld, portable, professional Class 2 sound level meter or decibel (dB) meter with builtin datalogging or datarecording functionality Thus, PCE322A is ideal for realtime noise measurement as well as for longterm noise exposure monitoring over time This PCE322A sound level meter comes with a PCESC 42 acoustic calibrator