0.02 - 20kHz; frequency response ≤ ±0.5 dB (based on 1 kHz)0.01 - 40kHz; frequency response ≤ ±2 dB (based on 1 kHz)

Electric signal measurement: -70 dB to +10 dB (0 dB = 1 V)Acoustic signal measurement: 60 dB to 140 dB (94 dB = 1 Pa)Measurement error: ≤ ±0.5 dB