... (C), 28 dB(Z)8Meas. upper Range140 dB9Peak C Sound Level Measuring Range50~143 dB10Frequency Weighting.Parallel (simultaneous) A, C, Z ... , T30, EDT4. Measuring Range: 0.20s to 20.00 s5. Wave record time: 10 s or 20 s6. Bandwidth of digital ... °c39Relative Humidity25 ~ 90%40Atmospheric Pressure65 kPa ~ 108 kPa AWA6291 Vibration Level Meter