FNIRSI FDM01 Handheld LCD Digital Sound Level Meter 30~130dB Noise Tester Meter
Model: FDM01. Dynamic scale range: 30-130dB. Dynamic range: 3.50dB. Dynamic characteristics: FAST (fast) and SLOW (slow) two kinds of response rate. Frequency range: 31.5Hz-8.5KHz. Frequency weighting characteristics: A weighting.