I have a Tenma 72-7730 (looks like a Uni-T UT71B clone.) It has always been a little funky with the Autorange in Ohms mode. For example, measuring a 100 ohm resistor that is 101.7 ohms will read as .1017 K ohms. It is the same for the Meg-ohm scale (101.7 K ohm will read 0.1017 M ohm). In fact, the only time it chooses the right scale is if the resistor is under 100 Ohms.
Is there anything I can do to fix this? Is this a common problem? I tried searching, but I couldn't seem to come up with the magic combination of terms to find this problem.