Home Digital Audiometer Nano
Input VoltageAC 230 Volts - 50 Hz / DC 12 Volts
Air Conduction
25 Hz to 8 KHz (Maximum 120 dB)
Speech 70 dB
Bone Conduction
250 Hz to 6 KHz (Maximum 70 dB)
Speech 70 dB
NoiseWide, Narrow & Speech Band.
Attenuator (Masking)  Steps of 5 dB
Masking Range 0 db to 100 dB

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