- Catonsville, Maryland, United States
- US $750.00
- Jan 30th
The MA 40 is a one-and-a-half channel audiometer that offers air and bone conduction screening. The MA 40 has built-in test signals including pure tone, pulse tone, warble tone and narrow band noise for Masking. The MA 40 air conduction frequency levels range from 125 Hz to 8000 Hz, with signal intensity levels from -10 dB HL to 110 dB HL.