GRAM PRES High Precision Milligram Scale,50g/0.001g Digital Mini Pocket Gram Scale,Mg Scale for Weighing Powders,Jewelry, Medicine, Gem, Reloading, with Cal Weight, Tweezer ，Tray and Scoop

This is one I've used. Can't tell you it's accurate because I've never checked it but it seems pretty good. GRAM PRES High Precision... https://www.amazon.com/dp/B0CGWPJ9MX?ref=ppx_pop_mob_ap_share