Long-time favorite

The MA 27's dependability has made it a favorite of hearing professionals for years. Rugged, all-in-one housing and reliable engineering means it's the audiometer you can count on.

Carefully engineered for accuracy

State-of-the-art audiometric circuitry ensures accurate, quick test results. Change to tone, pulse or warble by simply pressing a button. Large, fingertip control knobs provide access to a full range of frequencies and hearing levels.

Fast and easy to transport

The rigid, yet lightweight case with built-in handle and storage compartment not only protects the audiometer, but allows you to pick-up-and-go in a hurry. Ample storage inside the case is allowed for dual TDH39 headphones and other accessories.

ONE YEAR
LIMITED WARRANTY:

This warranty is extended to the original purchaser of the instrument, by Maico, through the Distributor from whom it was purchased. The warranty covers defects in material and workmanship for a period of one year from date of delivery of the instrument to the original purchaser. Accessories which are purchased from Maico at the same time as the instrument are warranted for one year from the date of purchase. For additional information contact your Maico Distributor.

Frequency Accuracy

+/- 3% maximum

Rise / Fall time

35 msec typical

Distortion

.5% typical, .3% minimum

Crosstalk

- 100 dB minimum

On / Off Ratio

80 dB minimum

Frequency Modulation

+/- 5% frequency modulating rate at 5 Hz

Voltage Requirements

117 V AC

Dimensions

14" W X 7" H X 17" D
35cm W X 18cm H X 43cm D

Weight

5.9 lb / 2.7 kg

Frequency Range

250 Hz to 8000 Hz

Hearing Level Range

-15 dB HL to 90 dB HL

Part Number

Part

4687

TDH 39 Headset

1162-417

Audiogram pad

1162-8508

Operating manual

1035-483

Carrying case

4695

Audiocup headset

1025-352

Patch cords