Main Test Area
Click here to start main wheel test
Scroll mouse wheel in this area to test
Real-time Data
Up Count0
Reverse Errors0
Down Count0
Avg Interval (ms)0
Precisely detect wheel performance, identify physical faults, evaluate scrolling accuracy and stability. Supports forward/reverse testing, real-time data monitoring, and event logging.
📖 Introduction:
Monitor mouse wheel scroll interval time (ms) in real-time to evaluate response speed and stability. Shorter intervals indicate more responsive and better performing wheels.
Professional detection of wheel backscroll (Scroll Jitter) issues. When reverse scrolling is detected, red warnings appear and error counts increase, accurately identifying hardware faults.
Supports both upward and downward scroll test modes, allowing independent testing of each direction for comprehensive wheel health assessment.
Real-time visual feedback: green arrow for normal upward scroll, blue arrow for normal downward scroll, red exclamation for detected backscroll faults.
Provides 500 lines of scroll test data, precisely measuring lines per scroll tick to evaluate wheel tick accuracy and consistency.
Complete scroll event logging including timestamps, scroll directions, and error events for easy problem analysis and diagnosis.
Wheel backscroll refers to the phenomenon where scrolling upward causes the mouse to suddenly jump downward, or scrolling downward causes it to jump upward. This is typically caused by encoder dust accumulation, wear, or hardware failure. During testing, when scrolling occurs in the opposite direction of the selected test mode, the tool displays a red "!" mark and increases the reverse error count.
Perform the following tests to assess wheel condition:
If reverse errors occur frequently, the wheel has physical faults.
Average interval time reflects wheel response speed and stability:
Average interval time should remain relatively stable during scrolling; significant fluctuations may indicate problems.
Wheel issues commonly occur in these cases:
Depending on problem severity, try these repair methods:
Most physical problems require mouse disassembly for cleaning or part replacement.
Consider repair or replacement when:
This tool helps you make informed decisions through quantifiable test results.
The tool uses JavaScript to monitor wheel events and precisely calculate these parameters:
All calculations performed locally in browser in real-time, no server processing required.
Yes, this tool works with both wired and wireless mice. Ensure your wireless mouse is properly connected with adequate battery. Some wireless mice may have different wheel characteristics, but testing principles remain the same. If test results are abnormal, try: