Review on 💊 Hanchen Analytical Electronic Pharmacy Chemical: Optimize your Pharmaceutical Analysis by Andre Belitz

I was hoping that for 1/4 the price of others the product could still be used with reasonable accuracy, at least close to calibration, but it is very very unstable, the reproducibility is bad, and leave it on the tray for 1-2 minutes and you're sure to get a big variation. The calibration appears to be good for about 30 seconds, after which it's anyone's guess where it's shifted. I've seen small "jewelry" scales for 1/10th the price that work about the same.