Products GSI TympStar

GSI TympStar
Comprehensive Middle Ear Tympanometer


The GSI TympStar sets the standard for clinical middle-ear testing...
A standard that had been established by its predecessor, the GSI 33. The sophistication, functionality and flexibility of the GSI TympStar provides unparalleled testing capabilities.

The GSI TympStar Version 1 provides four different test modes: tympanometry, reflex threshold, reflex decay, and Eustachian tube function testing.

Move up to the Version 2 if you are interested in accurately testing newborns and differential diagnosis of middle ear problems using multiple component and multi-frequency tympanometry.

The GSI TympStar is EMR/EHR
compatible with GSI Suite

The GSI TympStar's ergonomically designed control panel allows you to select a test protocol by simply pressing a button, and its large screen makes for easy viewing of test parameters, possible alternatives and test results. The high-speed printer generates reports in concise graphical or tabular formats. GSI TympStar options include a VGA monitor for displaying test results, an external printer that produces test results in a larger format, and a keyboard for entering patient information.

The GSI TympStar also offers several options for managing and archiving data including internal memory for 26 tests and a standard RS232 for data exchange.

For more information on GSI Suite click here.


Tympanometry (V1 and V2)

The GSI TympStar offers automatic or manual 226 Hz tympanometry in a diagnostic or screening mode. Sensitivity scales are automatically determined based on the peak amplitude of the tympanogram. The built-in screen can simultaneously display up to three tests, helping you to determine the presence or absence of a peak on a low-amplitude tympanogram.

Eustachian Tube Function (ETF) Testing (V1 and V2)

Two separate test modes are available, one for testing ETF with an intact tympanic membrane (TM) and one for testing ETF in a perforated TM. The ETF mode for an intact TM eliminates the need to instruct a patient to perform a Toynbee or Valsalva test.

Two-Component Tympanometry (V2 only)

Version 2 offers additional tympanometric capacity to test Admittance (Y), Susceptance (B) and Conductance (G) at 226, 678 and 1,000 Hz probe tones. This helps you quickly and clearly determine where, along the ossicular chain, problems in the middle ear are occurring in patients of all ages.

Multiple Frequency Tympanometry (V2 only)

Multiple-frequency tympanometry allows you to easily determine the middle-ear resonance frequency. Normal middle ears exhibit a resonance frequency of between 800 and 1200 Hz. A middle ear with otosclerosis would be above 1200 Hz, and a disarticulated ossicular chain would be below 800 Hz. When used in pre and post-operative test comparisons, this can give you quantitative proof of a patient's improvement.

Acoustic Reflex Threshold Testing (V1 and V2)

Acoustic reflex testing with the GSI TympStar allows you to automatically or manually time the tone presentation. Multiple stimuli and intensities are available to determine the threshold level for the acoustic reflex. Automatic threshold determination and threshold marking are available.

Reflex-Decay Testing (V1 and V2)

The GSI TympStar's screen clearly displays reflex decay time in seconds, as well as marks the five and ten second interval points.


The following specifications apply to both Version 1 and Version 2 of the GSI TympStar. > Bold arrowed type indicates the additional capabilities of Version 2.

GENERAL SPECIFICATIONS: 20.47"(W) x 14.96"(D) x 12.59"(H)
Weight: 16.53lb
Shipping Weight: 29.54lb
Power Consumption: 120 Watts maximum
Test Types: Tympanometry, Acoustic Reflex Threshold, Reflex Decay, Eustachian Tube Function (Intact and Perforated)
Protocols: Diagnostic, Screening, User-defined
Special Tests: Two-component Tympanometry, Multiple Frequency Tympanometry, Acoustic Reflex Latency Test, Reflex Sensitization
Display: Internal or External VGA Monitor
Interface: RS232, parallel and keyboard output
Printout: Internal or External Deskjet or Laserjet Printer
PROBE TONE: 226 Hz (85 dB SPL ± 1.5 dB)
678 Hz (85 dB SPL ± 3.0 dB)
1000 Hz (75 dB SPL ± 3.0 dB)

Accuracy: ± 1%
Harmonic Distortion: Less than 5%

Range: 226 Hz (-1.0 to +7.0)
678 Hz (-5.0 to +25)
1000 Hz (-5.0 to +30)

Sensitivity Scale: Auto Scales to Appropriate Range, Manual selection also possible in Reflex Modes only
Accuracy (226 Hz):
- Tymp Mode: ± 5% of reading or ± 0.1 ml, whichever is greater
- Reflex Mode: ± 5% of reading or ± 0.2 ml, whichever is greater
PRESSURE MEASUREMENTS: (load volume of 0.2 to 7.0 ml)
Range: Normal = +200 to -400 daPa
Wide = +400 to -600 daPa
Accuracy: ± 10% of reading or ± 10 daPa, whichever is greater
Sweep Rate: 12.5, 50.0 and 600/200 daPa/sec,
200 daPa/sec.
Sweep Accuracy: 10% of nominal rate
Maximum limits (in 0.5cc cavity): -800 daPa and +600 daPa
REFLEX MEASUREMENTS: Stimuli: 250, 500, 1k, 2k, 4k, BBN, LBN, HBN,
Click (100 microseconds pulse), External Input, Non-acoustic
Frequency Accuracy: ± 3%
Harmonic Distortion (THD): Less than 5% (measured acoustically)
Noise Signals: (3 dB bandwidths)
Low Band: 125 -1,600 Hz
High Band: 1,600 -4,000 Hz
Broad Band: 125 -4,000 Hz
Intensity Range: 35 to 120 dB HL
Step Size: 5 dB, ➧ 1 dB and 2 dB
Calibration Accuracy: ± 3 dB
Step Accuracy: ± 0.5 dB
ON/OFF Ratio: 70 dB minimum
- Storage: -40° F to +167° F
- Operating: +59° F to +95° F
- Humidity: 90% at 95° F (non-condensing)
ACCESSORIES SUPPLIED: Probe assembly (including contralateral insert phone)
Eartips (1 pkg. each standard, special, screening)
Printer paper, 2 rolls thermal, 1 roll self-adhesive
Calibration test cavity, Cleaning kit, Probe mount kit (shoulder, clip, wrist band), Quick User Guide, Reference Instruction Manual, Remote (RS232 link)
Dust Cover
OPTIONAL ACCESSORIES: Deskjet printer . .1700-9613
External VGA monitor . . .1700-9614
External keyboard . .1700-9615
Isolation Transformer . .1700-9617
Service Manual . . .2000-0110
Conversion Kit (V1 to V2) . . .2000-9650
LANGUAGE KITS: GSI TympStar Version 1
- English . .2000-9645E
- French . .2000-9645F
- German . 2000-9645G
- Spanish . .2000-9645S
- Italian . 2000-9645I
GSI TympStar Version 2
- English . 2000-9646E
- French . .2000-9646F
- German . . 2000-9646G
- Spanish . . 2000-9646S
- Italian . . 2000-9646I
QUALITY SYSTEM: Manufactured, designed, developed and marketed under an ISO 13485 certified quality system
COMPLIANCE / REGULATORY STANDARDS: Designed, tested and manufactured to meet the following domestic (USA), Canadian, European and International Standards:
UL 2601-1 American Standards for Medical Electrical Equipment
IEC 601-1, EN 60601-1 International Standards for Medical Electrical Equipment
CSA C22.2 # 601-1-M90
ANSI S3.39, ANSI S3.6, IEC 645-1, IEC 1027, ISO 389
Medical Device Directive (MDD) to comply with "EC Directive" 93/42/EEC

E-Record Solutions

GSI TympStar E-Record Solutions Compatibility

Below are five E-record solutions that are compatible with the GSI TympStar. Explore customized Electronic Record Solutions for any environment. To learn more about each of the individual solutions click on the "read more" tab.

GSI Suite

GSI Suite™ is compatible with the GSI AudioStar Pro™, GSI 61™, GSI TympStar™ and GSI 39™. With a single button press, data is transferred from the instrument to the software where it is stored or a report can be generated. Edits to the report are allowed until the test session is locked. Audiometric and tympanometric test results are combined into a single or multi-page report, improving and supporting the needs of the contemporary clinic. A NEW custom report designer satisfies the unique reporting needs of every facility. Counseling overlays assist the clinician with hearing aid fittings to discuss hearing loss results.


OtoAccess™ is a SQL database used to network multiple audiometric systems or offices, creating one master database. GSI Suite is a module within OtoAccess. Data from the GSI AudioStar Pro, GSI 39, GSI TympStar, and GSI 61 can be transferred into GSI Suite. All the functionality of GSI Suite is available in the module. Both packages, GSI Suite and OtoAccess, increase the efficiency of the contemporary audiology practice.

Audio Tymp Module

Noah Integration includes two options for audiometric data transfer - GSI Suite and the AudioTymp Module. All patient data is stored in the Noah database and can be accessed by all other Noah modules. This eliminates the need to manually enter thresholds for hearing aid fittings. As a module of Noah 4, GSI Suite makes the audiometric data compatible with practice management solutions like Blueprint Solutions, TIMS for Audiology and The various practice management solutions provide additional report options as well as HL7 interface. Noah networking options include LAN, WAN and wireless transmission.

GSI Suite: Data from the GSI AudioStar Pro, GSI 39, GSI TympStar, and GSI 61 may be transferred into GSI Suite. All the functionality of GSI Suite is available as a module within Noah 4. Data may be reviewed in Suite, Noah Aud module or in the Audiogram Preview area. Multiple reporting options are available. GSI Suite is compatible with Noah 4 only.

Audio Tymp Module: Data from the GSI AudioStar Pro, GSI TympStar, GSI 61, GSI 39 and GSI legacy products may be transferred into the AudioTymp Module. Data can be reviewed in the Audiogram Preview area or the Noah Aud Module. Multiple report options are also available. The AudioTymp module is compatible with Noah 3 and Noah 4.


Data from the GSI AudioStar Pro, GSI TympStar, GSI 39, GSI 61 and GSI legacy products may be transferred into the AudBase software program. Data may be saved in multiple formats (pdf, jpeg, tiff, etc.) and displayed in various reporting styles (single page, tabular, sequential). These options are standard in the "out of the box" software package. Customized reports are also available in the custom software package. Additional testing modules, like cochlear implant evaluations, are embedded in the AudBase audiogram. Using the 4D database, the data is accessible for extended research or sharing among various research facilities. Data is manually attached to the electronic health record using the "out of box" solution. Additionally, the custom solution offers a bi-directional HL7 interface that provides a seamless one button transfer into electronic record. Seamless interface solutions exist for Epic, Cerner, Centricity, NexGen and Greenway Medical. Interface to other electronic health systems can also be developed.

Direct Interface

GSI provides public access to the data streams of our products. 3rd party EMR companies may integrate the audiometric data from GSI instruments directly into their EMR/EHR programs. The direct transfer of data gives the physician immediate access to audiometric data in the electronic record. Data from the GSI AudioStar Pro, GSI TympStar, GSI 39 and GSI 61 may be transferred directly to AllMeds Specialty EHR and Greenway Medical. Reporting format is determined by AllMeds or Greenway Medical.

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