GSI
Allegro Tympanometer
User Manual
D-0120695 Rev D 2022-06 Page 1
INTRODUCTION
Thank you for purchasing a GSI Allegro, a hand-held, portable tympanometer that will give many
years of reliable service if treated with care. The instrument performs two types of
measurement:
Tympanometry is used to measure the admittance of the tympanic membrane and middle ear
at a fixed frequency over a range of pressures.
Acoustic Reflex tests are used to measure stapedial reflexes. The Allegro measures ipsilateral
reflexes and, when selected, reflex measurement is automatically carried out after a
tympanogram is taken.
Features
• Automatic measurement of ear canal volume, tympanic admittance peak, placement of
the peak and the gradient
• Automatic detection of stapedial reflexes
• Up to 32, dual-ear patient tests can be stored in non-volatile memory
• Configurable settings for user preferences, held in non-volatile memory
• Printout of data to a printer
• English, German, French, Spanish, Portuguese or Italian operating language (selectable by
the user)
INDICATION FOR USE
The GSI Allegro is intended to be used for the measurement of acoustic impedance/admittance
within the human external ear canal. These measures are useful in the evaluation, identification,
documentation and diagnosis of ear disorders. The device is intended to be used on patients of
any age.
INTENDED USE
The GSI Allegro is intended to be used by an audiologist, ear nose and throat physician (ENT),
hearing healthcare professional, or trained technician. The GSI Allegro is intended to be used in
a hospital, clinic, or other healthcare facility with a suitable quiet testing environment such as a
private exam room.
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