Technical Disclaimer

Technical notice regarding browser event limitations and hardware diagnostic results.

Last updated: August 13, 2026

1. Diagnostic Disclaimer

KeyTester Pro relies on web browser JavaScript event APIs (keydown and keyup) to test keyboard hardware. While web event testing is accurate for 99% of keyboard keys, certain special hardware keys (such as dedicated Fn laptop modifier keys, hardware power buttons, or custom macro software keys) may not be exposed to the web browser by your operating system or device drivers.

2. No Hardware Warranty

Diagnostic results generated by KeyTester Pro are provided "as-is" for informational and troubleshooting guidance. KeyTester Pro does not guarantee hardware warranty acceptance by third-party manufacturers.

3. Support Inquiries

If you have technical questions or need clarification regarding diagnostic performance, reach out to support@www.calcolo.biz.id.adaloker.biz.id.