Industrial Audiometers

CCA 100mini Computer Controlled Audiometer PDF

CCA-100mini Computer Controlled Audiometer

Powerful, entry-level industrial audiometer with data storage and full-page printout with the calculations you need completed for you.

CCA 100mini Computer Controlled Audiometer PDF

CCA-200mini Computer Controlled Audiometer

Full-featured industrial audiometer delivers the fastest tests. Automatic voice instructions are provided in eighteen languages

NEXT Audiometer PDF

NEXT Audiometer

The NEXT audiometer delivers touchscreen operational ease with powerful analysis to easily meet the latest OSHA compliance mandates. The integrated thermal printer offers user-friendly, “goof-proof” paper loading, and the USB flash drive (included) ensures data integrity by allowing you to quickly and efficiently back up your data.


Tremetrics RA360

The Tremetrics RA360 was designed to allow anyone to perform a fully compliant OSHA hearing screening quickly and easily. Developed around the day-to-day use of the person performing the tests, the workflow is designed to save both time and money. Following in the footsteps of the popular RA660, Tremetrics RA360 completes the new line and generation of Occupational Audiometers for Hearing Conservation. Tremetrics RA360 features an optional real-time type 2 ambient noise monitor to ensure compliance outside of a sound booth. Boasting a large easy-to-read display, responsive sealed control panel, and clever compact packaging; the RA360 can be cleaned easily, and transported within a laptop bag. The 500 audiogram storage, fast thermal printer, and ability to connect to a PC make this hybrid audiometer extremely flexible. When used with the Oscar 360, the daily biological will be performed in less than 30 seconds with an accuracy far greater than that of a standard daily biological.

Tremetrics RA660 Audiometer PDF

Tremetrics RA660 Audiometer 

The Tremetrics RA660 PC based audiometer comes with a built-in Bio-Acoustic Simulator and HearCon Software. A wall mount bracket is included, which conveniently houses the audiometer, patient response switch, and headset. An optional real time OSHA and ANSI compliant octave band monitor is available.

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Minneapolis: 12302 Princeton Avenue Savage, MN 55378
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Minneapolis Offices:
(800) 328-6709 or (952) 808-0320
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(800) 899-7866 or (402) 572-7866

COVID-19 Update

We are monitoring the situation and development of the coronavirus outbreak closely. Currently this means that Midwest Special Instruments has setup procedures for operating our business and at the same time minimizing infection and spreading of the coronavirus. MSI’s guidance to team members is aligned with the guidance of local and national health authorities; in some cases, we are even more cautious. We constantly update our policy to reflect any changes in guidance from authorities.

Our first priority is everyone’s health. We are doing our best to ensure our service is maintained as much as possible given the circumstances. We are taking all possible actions to ensure reliable service and deliveries. As of now, there is no slowdown in order fulfilment or device repair and calibration services.

We greatly appreciate your loyalty to Midwest Special Instruments. We are keenly aware that this outbreak affects not only your business with MSI but your daily life and that of your family, customers and staff.  Please stay safe and know that our thoughts are with you during this difficult time.