Rexing M2 Max User Manual page 25

Note:
The range of calibration of the line adjustment is limited. If extreme
adjustment is still unsatisfactory, it will be necessary to adjust the mounting
position of the camera or perform fine adjustments of the lens so as to align
6. Warning Range
Click to switch among the four corners of both the left and right
square zones. The corner indicated by the red spot means the zone is
currently adjustable. Click
touching one of the four arrows you may move it up, down, left, or
right. Click Save after making the appropriate adjustments. Only in
this way can the calibration data be saved.
to adjust the warning range. By
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