Description for hard keyboard:
Adjust the display screen brightness, there are four
levels.
Switch display mode (black and white, normal, night
vision, and high contrast).
Preview, save the measurement picture.
Save calibration and measurement curve.
Popup or down the right menu.
Quick start measurement.
Backspace.
Return to the previous interface.
Left and right move marker line.
Up and down move limit line.
Enter key.
Digital key, input 0-9.
*
Decimal point.
#
Minus sign.
April 2016
8