Really, if there should be a 1$ meter out there that actually meets the CATII standard that would be great, and there would be no obvious reason not to use it - but there is not such a meter.
I will play as Game, the lawyer of the Devil , and hit me as hard you can ..
1) Our great Chinese or Asian or what ever made multimeters are totally safe .
2) They comply with the named rating, that its model has .
3) They come with users manual , and all users should read it,
so to properly and safely, used this instrument.
(Load a weapon and shoot your self , the call it as bad weapon.)
4) Manufacturing defects , our multimeters are tested , and they do not suffer from any defects,
we was accused that our banana plugs are flimsy made , you had forget to show the back plate , that there is special support mechanism , so to keep those parts in place and unmovable .
( how in earth one unmovable part , can cause stress to the master PCB , when everything are bolted on the meter and properly supported by the cover ? )
5) The meters with three banana plugs comes fused with 200 - 300mA Fuses , even if the meter used by mistake at the Ohms mode to measure Mains , the Fuse will engage , and there is no harm done.
6) The un-fused 10A or 20A line , serves an special purpose , the meter works in line measuring Amperes , so there is no issue of explosion , the only issue could be if the current will remain in the tolerance of the multimeter.
If not, the multimeter will get damaged , and only the multimeter.
7) The Germans and Europeans , zapped our meters with 2000-3000 Volts ,
so to deliberately sabotage our products , with excuses about VDE or other regulations .
Our products are directed for home use , we do not know any home to use 2000V as mains .
8 ) We will manufacture, the special model that costs as 1$ , as you requested .