Slow tractor not triggering motion detection (Altas PT Ultra)

[luuke_869320929738914]

As shown in the first screenshot, a small white truck was detected by motion sensor,
but as shown in the second screenshot, a bigger tractor was not.
Both vehicles passed through without stopping.

Camera is Altas PT Ultra with firmware version v3.0.0.4339_24112212.
PIR Sensitivity is set to 100, reduce false alarms is off, and continuous recording is on for 24/7.
Smart detection is on and all Person, Vehicle and Animal categories are set to high(100).
And I did not set any "Object size", nor "non-detection zone".

It was on the same day and almost the same time.
The only reason I can think of is that the tractor was slower.
Is it possible to modify settings to let these tractors to be detected?

[joseph_1979]

@luuke_869320929738914 Detection algorithm was not able to determine the exact object type. Can you send the video to support on support @ reolink . Com so that they will improve the algorithm?