Nydiag 200

Rotary chair

Rotational testing is typically used during a full balance assessment and is a perfect complement to caloric testing.

Nydiag 200

Vestibular rehabilitation

The Nydiag 200 Rotary Chair can play an important role in monitoring the compensatory processes of vestibular rehabilitation therapy. It can chart the vestibular healing process by utilizing a wide range of frequencies and acceleration rates.


The physiological rotatory stimulus is similar to that which the patient will experience in daily life. This makes rotational testing particularly suitable for Vestibulo Ocular Reflex, (VOR) testing. Includes step rotation and sinusoidal harmonic acceleration.

Full control

The Nydiag 200 Rotary Chair provides precisely controlled and reproducible stimuli. You have full control over acceleration, velocity and amplitude and can easily design and configure your own protocols.
Nydiag 200 PC module

Rotational testing

The Rotary Chair can be easily reclined to various positions to allow for caloric and positional testing. The FireWire® high resolution cameras connect directly to a computer and provide superior eye image quality.
  • Full test battery (Sinusoidal Harmonic Acceleration (SHA), Step Test, Vestibulo Ocular Reflex, (VOR) Suppression)
  • Maximum speed of 200 degrees/second
  • Reclining chair can double as VNG exam table
  • User-definable protocols
  • Lightweight Combi goggle with replaceable foam cushions
  • FireWire® high resolution cameras
  • Integration with Interacoustics VNG for comprehensive approach to vestibular evaluation

Product support center

Visit our support center to find resources and downloads.

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OtoAccessTM compatible

Transfer of patient information and results to EMR/EHR.


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FireWire and the FireWire symbol are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. The FireWire logo is a trademark of Apple Computer, Inc.
Some features may not be available for all countries or all areas and product specifications are subject to change without prior notification.
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Extensive Documentation

Looking for help? Take a look at our support center to find extensive documentation. From tips on getting started to how to test guides — everything can be found here.


Find ways to buy our products: Visit an Interacoustics sales office, call 45-6371-3555, or find a distributor.
Features and/or functions may not be available for all countries or all areas and product specifications are subject to change without prior notification.