De -5000 adapter can be modded to 4 wires
i don't think the 880 was flawed, but maybe un-calibrated ...
I'm not even sure theses come from B&K ... must be rebrands, even their old 885 886 and bench ones too where rebrands
but now you have East Tester ET xxx series, Hantek 1832 1833 ones, some Appa, Peaktech, the new Uni-t models etc ... google handheld lcr and in the images youll see ton of thems rebranded etc ...
even some NJ200 NJ300 models sold on ebay seems to offer good performances vs pricing
0.5% is pretty basic ...