If that is the high precision ....

I was lucky, the received model is in working order, the user guide is in French.
At first, I put errors on the account of temperature variations in the studio where I practice reloading cartridges for competition shooting.
A backup heater not delivering a constant temperature in the room, it is possible to have variations.

This afternoon, the room is temperate, and the temperature constant.
I leave the Chinese machine again, and I rule on a mechanical weighing upscale RCBS balance, which I never cheated, and verifies the accuracy of weighing electronic supposedly.
4.4 kernels, this gives the small blue screen readable, 3.9 or 4 grains.
This is not serious, because a dose of 38 to BA10 special in wadcutter 148 is between 0.17 grams and 0.15 grams. Converting grams grains avoids making calculations, but it is still necessary that weighing is fair, in this case it is an essential safety issue.
I can possibly use it to weigh the empty cases for consistent batches.

This balance must be good for powdered sugar dealers that some get into the nostrils, but certainly not for a high-precision work.
Although for me, again I thought to make a deal by buying cheap, and as they say, for the stew, cheap is always too expensive.

I highly recommend this "two bullets" to those who need high accuracy.