Bio-Acoustic Simulators

BAS 200 Bio Acoustic Simulator PDF

BAS-200 Bio-Acoustic Simulator

The most reliable way to perform the daily calibration check required by OSHA regulations.

BAS 200 Bio Acoustic Simulator PDF

BAS-200slm Bio-Acoustic Simulator / Sound Level Meter

Combination ANSI sound level meter and bio-acoustic simulator for ensured compliance with OSHA ambient noise regulations and daily biologic check.

OSCAR 6 Electro Acoustic Ear Octave Monitor PDF

OSCAR 6 : Electro-Acoustic Ear & Octave Monitor 

Always ensure the validity of your hearing conservation program. Generate compliance documentation: a daily legal record that your audiometer is calibrated. Perform the daily biological test. Include self-guiding, color-coded earphone couplers Portable.


Tremetrics Oscar 360

Electro Acoustic Ear for daily biological check & available Octave Monitor is designed specifically to work with the RA360 Audiometer.

Amplivox PC850 Automatic Audiometer machine

Amplivox PC850 Automatic Audiometer

Standalone Automatic Audiometer for Occupational Health Hearing screens. The device can be integrated directly with many leading Electronic Medical Record (EMR) systems including Cority, Eopas, G2 and Cohort to provide a seamless audiometric test function.

Get In Touch

Need help finding a product or run into an issue on our site? Contact us directly at (800) 328-6709 or send us a message!

Contact Info

Our Offices

Minneapolis: 12302 Princeton Avenue Savage, MN 55378
Omaha: 3738 S. 149th St., Suite 116, Omaha, NE 68144

Open Office Hours

M-F: 8am - 5pm
S-S: Closed


Contact Us

Minneapolis Offices:
(800) 328-6709 or (952) 808-0320
Omaha Offices:
(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.