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Calibration Verification Built-In

Portable audiometers made for you

X-check (cross-check) is a digital calibration verification tool designed to replace manual calibrations checks and is available as an add-on for all KUDUwave™ devices.
It enables accurate calibration verification (within 5dB) to objectively measure and ensure the precision of your results.

Audiometer calibration should be performed annually. In some standards such as the South African SANS 10154-1.3 for occupational health, quarterly calibration intervals are required for portable audiometers. This also applies to any audiometers which are moved from one location to another. That being said, regular calibrations are a requirement for every audiometric testing scenario.

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But what happens between calibration intervals?

Regular calibration is mandatory, but your audiometer, whether static or portable can go out of calibration at any point during the year. A bump or a damaged cable could be the difference between correct and incorrect test results.

Even the slightest error could alter your treatment path.

The effect could be exaggerated in a high volume testing scenario such as occupational health.

So, how do you ensure that your results are always on point?

That is where biological calibration checks come in.

Biological calibration checks are a requirement of most standards and best practice guidelines.
These checks are intended to ensure that your audiometer is performing as expected between calibration intervals. It should be done daily, prior to performing any tests. 

But, how many clinicians or occupational health practitioners actually do this standard check?

Why biological checks aren’t good enough

Biological tests are done by testing the hearing of a subject with known hearing values, often the clinician or another staff member. If the results match, the device should still be calibrated. Simple. Or is it?

Biological checks are subjective in nature, and can be affected by certain factors such as; the health of the subject or the subject’s recent exposure to noise. Both of which can affect thresholds. A common cold can affect your hearing levels, even before you are acutely aware that you are ill.

They can also be a pain and take up valuable time to perform which means that some clinicians tend to skip them all together.

Calibration checks are allowed an effective 20dB range of accuracy (10dB either direction), coupled with our own biological variations this makes them inaccurate.

When even a 10dB variation in test results could make all the difference should we really rely solely on this form of verification?

That is why we developed X-check.

X-check replaces biological calibration checks with a more reliable and accurate digital calibration verification that takes just 30 seconds. This is a powerful tool that is used to cross reference calibration values and actual outputs on the fly and gives you the power to act quickly if there are any identified problems.You will not only save time but also ensure that you stay compliant with the relevant standards, follow best practice and produce accurate test results between calibrations.

  • X-check (Cross Check) verifies the calibration of your KUDUwave digitally. Like biological checks, X-check does not replace the need for regular calibrations as per the need for regular calibrations.

    X-check is a new feature that comes standard with all  KUDUwave™ PrimeKUDUwave™ Plus and KUDUwave™ Pro devices made after March 2018. The great thing about KUDUwave Audiometers is that they are all up-gradable.

    If your KUDUwave™ is not equipped with X-check a message will indicate that you should contact us to make arrangements.

    Upgrades are simple and will also include the cost of calibration.

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