MA 27
Carefully Engineered for Accuracy
State-of-the-art audiometric circuitry ensures accurate, fast test results. Switch between tone, pulse, or warble by simply pressing a button. Large, fingertip control knobs provide access to a full range of frequencies and hearing levels.
- All-in-one sturdy case with built-in handle and storage.
- Continuous, pulse, warble tones.
- Easy fingertip operation of frequency and hearing level controls.
Easy to Transport
The rigid, yet lightweight case with built-in handle and storage compartment not only protects the audiometer, but also allows for quick transport. Ample storage holds headphones and other accessories.
Technical Data
| Frequency Accuracy | +/- 1% maximum |
| Rise/Fall Time | 35 msec |
| Distortion | 0.5% typical, 2.5% maximum |
| Crosstalk | -100 db HL minimum |
| On/Off Ratio | Greater than 80 dB |
| Frequency Modulation | +/-5% frequency modulating rate at 5 Hz |
| Frequency Range | 125 Hz to 8000 Hz |
| Hearing Level Range | -10 to 100 dBHL in 1 and 5 dB steps |
| Dimensions | 10" W x 6" H x 14.5" D (25.5 cm W x 15 cm H x 37 cm D) |
| Weight | 5.28 lbs / 2.4 kg (with all accessories) |
| Power Supply | External, 5 VDC, MA 100-240 VAC |
| Stimulus | Continuous, pulse, warble |
Applicable CTP Code(s)
- 92551: Screening, pure tone
- 92552: Threshold, air
Standard Accessories
- DD45 Headset, with HB7 Headset
- Audiogram Pad
- Operators Manual
- AC Adapter
Optional Accessories
- Audiocup Headset
- Patch Cord
- MA 27e
MA 25
Accurate, Dependable Engineering
The MA 25 is engineered to be tough and reliable, making it suitable for use anywhere. User-friendly knobs simplify adjusting frequency and hearing levels, while simple push-button operation handles right/left, pulse tone, and warble.
- Air Conduction
- Runs on 3 AA batteries, or an AC adapter (included).
- Continuous, pulse, warble tones.
- Exceptionally lightweight, only 3.5 lbs.
- Carrying case included.
Sleek, Small Design
Weighing in at only 3.5 lbs, the super-lightweight MA 25 is small enough to hold in the palm of your hand. Tucked into its included carrying case, it is one of MAICO's smallest, lightest portable audiometers.
Technical Data
| Rise/Fall Time | ~35 msec |
| Distortion | 2.5% maximum |
| Crosstalk | -100 dB minimum |
| On/Off Ratio | Greater than 80 dB |
| Frequency Modulation | +/-5% frequency modulating rate at 5 Hz |
| Frequency Range | 125 Hz to 8000 Hz |
| Hearing Level Range | -10 to 100 dB HL, in 1 and 5 dB steps |
| Dimensions | 9" W x 2.25" H x 7.5" D (23cm W x 6cm H x 19cm D) |
| Weight | 3.5 lb / 1.6 kg (with accessories & carrying case) |
| Power Supply | 3 AA batteries, external power supply; 5 VDC MA, 100 - 240 VAC |
| Stimulus | Continuous, pulse, warble |
Applicable CTP Code(s)
- 92551: Screening, pure tone
- 92552: Threshold, air
Standard Accessories
- Audiogram Pad
- Operators Manual
- Carrying Case
- DD45 Headset, with HB7 Headset
- AC Adapter
Optional Accessories
- Audiocup Headset
- Patch Cord
- MA 25e 5601
Extended Functionality (MA 25e and MA 27e)
- Automated Hughson-Westlake
- Results recalled from internal memory
- PC compatible w / SNAP software
- Includes patient response switch & USB cable following test
MA 1
The super-lightweight MA 1 weighs in at only 1 pound. Small enough to hold in the palm of your hand! Tucked into its carrying case (included), the MA 1 is MAICO's smallest, lightest portable audiometer.
- Air conduction screener.
- Easy one-hand push button operation.
- Fits in the palm of your hand.
- Exceptionally lightweight, only 1 pound.
- Runs on 2 AA alkaline batteries.
Technical Data
| Screening Audiometer | |
| Test Frequencies | 500, 1000, 2000, 4000 Hz |
| Rise/Fall Time | 35 msec typical |
| Attenuator Range | 15 to 50 db HL 5 dB steps |
| Stimulus | Continuous |
| Distortion | 0.5% typical, 3% maximum |
| Dimensions | 2.5" W x 6" H x 7/8" D (6.35 cm x 15.24 cm x 2.22 cm) |
| Weight | 2.1 lbs (with accessories and carrying case) |
| Power Supply | 2 AA Alkaline |
Applicable CTP Code
- 92551: Screening, pure tone
Standard Accessories
- Audiogram pad
- 2 AA Alkaline batteries
- Carrying Case
- DD 45 Headset with HB7 Headset
- Device Stand
- Operators Manual
Optional Accessories
- TDH 39 Headset
- Audiocup Headset
