GSI World-wide Audiometric Solutions

Our approach

For over 65 years, Grason-Stadler (GSI) has been "Setting The Clinical Standard" in Audiometry, Tympanometry and hearing healthcare diagnostics.

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GSI A Tradition of Excellence

A tradition of excellence

In 1949, Rufus Grason and Steven Stadler co-founded Grason-Stadler (GSI). The company originally manufactured electronic medical instruments for behavioral and pharmaceutical research but in 1952 introduced its first clinical audiometer.

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Latest News

  • allegro-press-release

    A New Screener from GSI

    Introducing Grason-Stadler's new handheld screening tympanometer, the GSI Allegro™. The Allegro is ready to take on any testing environment that requires tympanometry or ipsilateral acoustic reflexes. The device comes equipped with a charging cradle, printer, and a convenient carrying case allowing for easy transport to satellite clinics and off-site community events.



  • AMTAS Flex Press Release

    Introducing AMTAS Flex™

    Grason-Stadler has announced the release of AMTAS Flex™, a tablet-based hearing evaluation tool designed with the busy clinical in mind. AMTAS Flex offers screening and threshold air conduction audiometry. Screening and diagnostic testing are both available with the software. The threshold test provides up to six quality indicators and two reporting formats: interpret and counseling.



  • Novus Press Release

    New AABR/OAE Touch Screener

    The new GSI Novus™ is a hand-held, comprehensive newborn hearing screening instrument. The Novus features a touch screen display and intuitive software in a compact hardware design. The device may be configured with any combination of AABR, TEOAE, and DPOAE which allows for seamless two stage infant screening.



Upcoming Events

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    February 4-6, 2019
    Dallas, TX
    Booth TBD

    JDVAC is an annual meeting between the Association of VA Audiologists (AVAA) and the Military Audiology Association (MAA). This annual meeting of the two organizations began as part of an effort aimed at expanding and enhancing the cooperation and collaboration between the DOD and VA Audiologists. It provides an opportunity for networking and collaboration between the audiologists treating our active duty service men and women and those working with our nation's veterans.


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  • ehdilogo2


    March 3-5, 2019
    Chicago, IL
    Booth TBD

    In its 18th year, the EHDI Meeting has built a strong reputation for bringing together a wide variety of attendees including those who: work in state Early Hearing Detection and Intervention programs; assist in EHDI efforts on the federal level; provide screening, diagnostic, and early intervention support at the state/local level to young children with hearing loss and their families; champion Medical Home activities within each state; are parents of children with hearing loss; or are deaf or hard-of-hearing adults who are helping to expand opportunities for young children with hearing loss.

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  • aaa-2019


    March 27-30, 2019
    Columbus, OH
    Booth #1325

    AAA 2019, the Academy's annual conference and exposition, is the world's largest gathering of audiologists. This annual meeting provides participants the opportunity to attend four days of educational sessions, explore the latest in hearing technology, and network with colleagues from around the world.


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Contact Us

Grason-Stadler Inc.

Corporate Headquarters
10395 West 70th St.
Eden Prairie, MN 55344

General Inquires:
+1 800-700-2282
+1 952-278-4401

Technical Support:
+1 877-722-4490
+1 952-278-4456

Live Remote Assist

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