Ensure the correct attenuation performance of hearing protection
  • Compact & Portable – Simple solution with an iOS device and test probe
  • User friendly interface – Batch report function for multiple measurements
  • Objective test – Assurance that hearing protection is effective
  • Quick test – Pass or Fail measurement
  • Personal Attenuation Rating (PAR) – with report generation
  • Compliant to ANSI S12.71-2018 standards
Why should you check for acoustic leakage?
  • Clients cannot accurately tell whether they have enough protection or not
  • The only way to maintain 100% confidence in your hearing protection solution
  • Regular checks are mandatory in some workplaces for compliance
Our Technology
  • The ALT system uses a probe to play and measure sound. The size of any leaks is determined by comparing the returned sound with the emitted sound. These values are then used to calculate a Personal Attenuation Rating (PAR), a unique value that reflects the amount of attenuation specific to the client and their hearing protection.

Product Camparison
Videos with Instructions
  1. Is the application compatible with Android Phone?
    The current version will only be available on iOS.
  2. How do I get the application?
    The application can be downloaded from the Appstore, by searching “Easy Line ALT”.
  3. Where can I find the complete user guide?
    You can download the complete user guide via this link.
  4. Are there any spare parts available?
    Yes : calibrator, probe and rubber interface are available.
  5. What else do I need besides an iPad, iPod, or iPhone and the ALT?
    Depending on your device, you might need a 3.5mm jack to Lightning or USB-C adapter.
  6. In which language is the application available?
    The App is available in five languages: EN, DE, FR, NL, ES. If one of these languages is the default language of the used device, the App will automatically run in that language. If the device uses another language, the App will automatically run in English. You can change the App’s language to any of the five supported languages at any time. To do this, open the device’s Settings section, then scroll down to the Easy Line ALT App. Tap on the App, and then scroll to the Language section – here you can choose from any of the five available languages.
  7. Who developed this product?
    Easyline acoustic Leakage Tester is a product developed by Sonova Communications.