hi
Was it a pxi-4071 instead of pxi-4070

since the 2001 and 2010 are 7.5 digits
4070 vs 4071 attached picture, theses are the obvious ones
K2010 was supposed to have better specs form the older 2001 ?
attached comparisons from the main file : 1KW-61264-4_DMM_Comparison_Table_021721.pdf