e3 Diagnostics

Audiologists use tympanometry measurements to test the middle ear's mobility when changes in air pressure occur. Recorded on a graph called a tympanogram, the results of tympanometry tests offer information about air pressure in the middle ear. Middle-ear tympanometry helps audiologists diagnose hearing loss and recommend a solution such as a hearing aid.

From handheld tympanometers to desktop models that offer a complete range of middle ear tests, e3 Diagnostics has the tools you need. Our tympanometry devices will allow you to diagnose patients' hearing issues so they can improve their quality of life quickly. You can feel confident with our high-quality tympanometry equipment from respected manufacturers including MAICO, Interacoustics, Amplivox, and Grason-Stadler.

gsi-39_2

Grason-Stadler GSI 39™

Available in five different versions, the GSI 39 is a flexible screening device for tympanometry, acoustic reflex measurements, and audiometry. Offering unprecedented scalability, it allows you to easily add new features as you grow.

Also, the addition of 1 kHz allows tympanometry and tympanometry/reflex testing on babies under 6 months of age.

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Datasheet

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Specifications

Combo Probe (226 Hz and 1 kHz probe tones)

Part Numbers: 1739-9711, 1739-9721, 1739-9731, 1739-9741, 1739-9751

Tympanometry and Reflex Modes

Frequency: 226 Hz +⁄- 2%

Intensity: 85.5 dB SPL +⁄- 2.0 dB; measured with an IEC 60318-5 2 cc coupler

Harmonic Distortion: < 3%

Frequency: 1 kHz Hz +⁄- 2%

Intensity: 75 dB SPL +⁄- 2.0 dB; measured with an IEC 60318-5 2 cc coupler

Harmonic Distortion: < 3%