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For over 60 years, Grason-Stadler (GSI) has been setting the Clinical Standard in Audiometry, Tympanometry and hearing healthcare diagnostics.  Far more than a tagline, “Setting The Clinical Standard” is embedded in our corporate DNA and is the driving principal behind everything we do.

7625 Golden Triangle Drive
Suite F
Eden Prairie, MN United States 55344
Phone: 800-700-2282
Fax: 952-278-4401
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Audiometers, Accessories

GSI 61

The GSI 61 is designed to meet the changing needs of busy clinics and practices around the world.  It comes with everything you need to perform complete diagnostic audiometric evaluations with maximum speed and efficiency and has several optional features to further enhance your testing capabilities. 

  1. EMR and NOAH compatible
  2. Fast, accurate testing
  3. Audiogram display and status display
  4. Built-in scorer/timer
  5. Dual channel control
  6. Articulating LCD monitor and ergonomic keyboard
  7. Mixing/Routing capabilities allow operator to mix signals and route to either one or both ears
  8. Direct calibration for TDH head phones and insert phones


GSI Typmstar

The GSI Tympstar is a comprehensive middle ear testing solution designed to meet the needs of audiology professionals and hearing specialists throughout the world.  No other middle ear analyzer offers a broader range of testing capabilities.

  1. EMR and NOAH compatible
  2. Pre-programmed test protocols
  3. Multiple programmable default settings
  4. Multi-frequency, multi-component tympanometry
  5. Patient-Friendly ultra-light probe
  6. Large screen for easy viewing
  7. Choose from two versions to meet all of your clinical needs


GSI Audera

The GSI Audera meets all of your needs for evoked Potential testing by providing a unique combination of Auditory Steady State Response (ASSR), Auditory Evoked Potentials, Cortical Potentials, and Otoacoustics Emissions (OAE) tests.

  1. CE-Chirp Stimulus and CE-Chirp Octave Bands
  2. User-friendly software
  3. ASSR all on one screen
  4. Display results for different tests, recorded with different times bases, on a single chart
  5. One database, one software application 


GSI 70

When speed, safety and accuracy matter most, choose the GSI 70 Automated OAE screener. The GSI 70 is ideal for the demands of newborn or pediatric screenings, as well as for adults in a managed care or medical setting.

  1. Fast, reliable results in as little as 10 seconds
  2. Ergonomic probe design that is easy-to-use
  3. Foot-switch for hands-free operation
  4. Optional single-patient or multi-patient design for large or small facilities
  5. Infared transmitter lets you download data without cables or wires


GSI AudioScreener+

The GSI AUDIOscreener+ is a small, handheld hearing screener that is ideal for neonatal hearing screening programs, pediatrician officers and primary care physicians.  Its universal display is easy to read and easy to use by non-hearing professionals.  Choose OAE, ABR, or OAE/ABR combination testing for a complete screening solution.

  1. Lightweight, handheld design
  2. Fast, accurate screening
  3. Both TE and DP OAEs
  4. ABR screening
  5. Tracking software compatible with OZ and HiTrack


GSI 18

The GSI 18 is designed to be the one solution for every hearing screening situation – from schools and industrial settings to physicians’ offices and managed care institutions.  Plus, its ergonomic design makes performing tests easier than ever before.

  1. Compact and lightweight design for easy portability
  2. Calibration storage for standard earphones and optional insert phones
  3. Full frequency and intensity range
  4. Unsurpassed durability
  5. Battery power option


GSI 39 Auto Tymp

The GSI 39 Auto Tymp provides a flexible, screening product for tympanomtry, acoustic reflex measurements and audiometry to meet testing needs today and in the future. The product is available in five different versions.

  1. Versatile and easy to use
  2. Automated and manual autometry
  3. Ipsi and contra reflex measurements
  4. Data transfer to PC via USB connection
  5. Upgradeable test battery
  6. Tabular and audiogram print formats
  7. 226 Hz and 1,000 Hz probe tones