22 / Device Tests
Mouse Tester & Double Click Test
Test mouse buttons, unwanted double clicks, scroll direction, polling rate, click speed, and drag hold in one place.
01 / Buttons
Button & double-click log
02 / Wheel
Scroll wheel direction
03 / Movement
Browser polling estimate
- Median gap
- —
- 95th percentile
- —
- Samples
- 0
Browsers may merge pointer events or cap updates near the display refresh rate. Use this to spot large inconsistencies, not to certify an advertised 4,000 or 8,000 Hz rate.
04 / Speed
Clicks per second
Your first left click in the test pad starts the timer.
05 / Hold
Drag without an accidental release
Waiting for a drag.
Field note
Check the whole mouse before replacing it
Use the navy pad to test left, middle, right, Back, and Forward buttons. Every press updates its own count and timing gap. Some browsers or operating systems reserve side buttons, so a missing Back or Forward event can be software behavior as well as hardware trouble.
Mouse double-click and switch bounce test
Two presses 80–500 milliseconds apart count as a normal double click. A pair at or below 80 milliseconds gets a possible-bounce flag because worn switches can fire twice almost instantly. Repeat 20–30 slow single clicks before deciding the mouse is faulty.
Scroll wheel and polling rate test
Roll slowly in one direction and watch for an unexpected opposite event. The polling estimate uses recent pointer-event gaps. Browser event merging means the number can be lower than the USB hardware rate, especially with high-rate gaming mice.
CPS and drag hold test
The left-click speed test starts on the first pad click. The drag track checks whether the primary button stays held across a long movement. Save / share exports all button counts, timing flags, wheel totals, polling estimates, CPS, and drag results as a text file for phone or desktop.