MA 42

Portable 2 Channel Audiometer

Portable air, bone, speech 2-channel audiometer with built-in word lists, patient storage, and NOAH compatibility.

Audiometer General
Test Frequencies125 Hz – 8,000 Hz (8,000 Hz – 16,000 Hz optional)
Level Steps5 dB, 2 dB or 1 dB level steps (user selectable)
Test SignalsPure tone, Pulse tone, Warble tone
Masking SignalsNarrow Band Noise: With the same center frequency resolution as pure tone

Speech Noise:12 dB/octave above 1 kHz (+/-5 dB)
Audiometer General
ModulationPulse Tone: 0.25/0.5 s on time

Warble Tone: 5% sinus frequency modulation, repetition rate 5 Hz
Tone TestsHL, MCL, UCL
Speech TestsSRT, WRS, MHA, MCL, UCL
Over Threshold TestsDecay, SISI, ABLB, MLB
Patient ResponseHandheld response switch
Data ConnectionUSB, LAN Ethernet
Audiometer General
Power Supply100 - 240 V~ 50/60 Hz ±10 %
DimensionW x D x H: 13.4” x 7.9” x 3.2”
(34.5 x 20 x 8 cm)
Weight2.7 lbs (1.22 kg)


MA 42 Operating Manual

MA 41 and MA 42 Brochure

MA 42 Quick Guide

MA 39, MA 40, MA 41, and MA 42 FAQ

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