Hi
I also purchased ProbeMaster probes from Welectron.
A big "ball out" of the UNi-t with the UT89XE was the lack of a "relative" option for resistance measurement. With ProbeMaster's probes the issue was well circumvented.
1- ProbeMaster probes
2- Measurement with the original UT89XE probes (40mR)
3- Measurement with ProbeMaster probes (zeroed)