What's its minimum detectable AC value? I mean the value based on your real experiences, not based on specs, better if in comparison with other more accurate instruments/gauges to see how "effective" is its lowest detected value ![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)
just tested it at 50 Hz. The test setup is PSG9080 sig gen, BM867S dmm and RF grade 49.85 Ω dummy load (FLORIDA RF 32A1213F C0C).
The first value is measured RMS voltage on dummy load.
The second value is calculated RMS current through dummy load.
The third value is UT210E current reading on 2A range.
0.100 Vrms / 0.0020 Amps => 0.000 Amps
0.200 Vrms / 0.0040 Amps => 0.000 Amps
0.242 Vrms / 0.0049 Amps => flashing 0.000/0.001 Amps
0.250 Vrms / 0.0050 Amps => 0.001 Amps
0.300 Vrms / 0.0060 Amps => 0.003 Amps
0.405 Vrms / 0.0081 Amps => 0.005 Amps
0.502 Vrms / 0.0101 Amps => 0.008 Amps
0.600 Vrms / 0.0120 Amps => 0.010 Amps
0.702 Vrms / 0.0141 Amps => 0.012 Amps
0.802 Vrms / 0.0161 Amps => 0.014 Amps
0.900 Vrms / 0.0181 Amps => 0.016 Amps
1.001 Vrms / 0.0201 Amps => 0.018 Amps
2.002 Vrms / 0.0402 Amps => 0.037 Amps
3.004 Vrms / 0.0603 Amps => 0.057 Amps
4.004 Vrms / 0.0803 Amps => 0.076 Amps
So, the minimum detectable current which shows 0.001 value on the display is about 4.9 mA.
PS: I was used two 1 meters wires and 1 meter coax with alligator clips, so there is possible a little measurement errors due to cable resistance, capacitance and non reliable contact on alligator clips.