# K994254: Interacoustics AT235 Impedance Audiometer

- Pathway: 510(k) (Traditional)
- Applicant: International Distributors of Electronics For Medi
- Decided: Mar 14, 2000 after 88 days
- Product code: ETY (Tester, Auditory Impedance)
- Device class: 2
- Regulation: 21 CFR 874.1090
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
10 later devices descend from it; 4 cite it directly.
0 of 11 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Interacoustics AT22t Automatic Impedance Audiometer: named in the summary without a submission number

## Most influential descendants
- K083861: Titan, Titan Shoulder Box, Titan Cradle, Titan Printer, Titan IMP440, IMP440 Module, Titan Suite (2009), 6 descendants of its own
- K133012: Sentiero (2014), 4 descendants of its own
- K171038: Hearing Healthcare Pro (2017), 1 descendant of its own
- K220139: QScreen (2022), 0 descendants of its own
- K213345: Sentiero, AuDX, AuDX PRO, Sentiero Desktop, AuDX PRO Flex, Sentiero Advanced, NavPRO ONE (2022), 0 descendants of its own

## Indications for use
The Interacoustics AT235 Impedance Audiometer is an electroacoustic test instrument that produces controlled levels of test tones and signals intended for use in conducting diagnostic hearing evaluations and assisting in the diagnosis of possible otologic disorders. It features tympanometry, acoustic reflex and air conduction audiometry.

Source page: https://510kreport.com/device/K994254
Methodology: https://510kreport.com/methodology