For jewellery balance/ electronic balance,  you can chose our 651 series (651C,651,651E, 651D), for 600g-0.01g, it's better to use creep precision of 0.01%, for 300g-0.01g, can use our 300g 0.01% precision. If you have special requirement of super high quality, you can chose 0.005% precision. The precision means creep precision. because For high precision balance, creep is the most import.