We had a Fluke 8020B at the transmitter site & it was a pig to use.
The side pushbuttons were hard to operate one handed.
Later,everybody got Fluke 77s in their kit,which,with the offset rotary knob ,were a dream to operate one-handed.
The auto-off on the 77 would not operate if you were actually taking measurements,whereas some later meters quite happily turn the thing off,just as you get set to take a reading.
Another delight I ran into with some early UNI-T meters is that,long before the "low-battery" symbol came up,they started to give nonsense readings on the Resistance range.
That is definitely not a feature you want in your proposed meter!