Signal Desk

Add Signal Desk to this device

Good to know

  • An internet connection is required. Nothing works offline.
  • Adding it does not request permissions or send notifications.
  • The app window and browser tabs may use separate storage, so practice records can look different.
  • Menu names and positions vary by browser and version. To remove it, use your browser’s or device’s app settings.

Input

Mouse wheel quality observation

Observe up/down wheel events, reversals, and gap patterns.

Getting the controls ready…Still loading. Check your connection, then reload the page.

After starting, use buttons and the wheel in the zone below.

While testing, wheel and side-button input inside this area is recorded and page navigation is blocked. Wheel press and up/down roll are shown separately.

  • Wheel UpNot yet
  • Wheel DownNot yet

Mouse test area. While the test is active, only buttons and wheel input inside this zone are recorded, and in-zone wheel rolling does not scroll the page.

Not started

Wheel events: 0

Direction reversals (observation): 0 · Large gaps (observation): 0 · Zero gaps (observation): 0

Last wheel direction: — · Wheel ΔY (observation): 0

Direction reversals and gaps are browser wheel-event observations — not notch counts or certified physical distance.

Start the test, use the mouse, then stop — you can then save a summary of this run to My desk.

Details and limits

Shows wheel event order plus reversal and gap stats. It does not prove physical notch count or exact scroll distance.

How to check

Start, then roll the wheel slowly and quickly only inside the test zone. Check up/down, reversals, large gaps, and zero gaps.

If something feels wrong

If direction feels wrong, check OS or browser scroll direction first.

Limits

Trackpads, high-resolution wheels, and OS acceleration change event patterns. This is not a hardware grade.

Test methods and limitations
FAQ

Many reversals mean a broken wheel?

Hand tremor, acceleration, or a trackpad can look like reversals. Treat them as observations.

ΔY values jump around.

They are browser deltas only — not physical distance or polling rate.