To make high precision jewellery balance or electronic balance.normally use single point load cell,  Creep of load cell is most important! The software of jewellery balance is also important. If have excellent software, you can use creep precision of 0.02% to make scale of 300g/0.01g. if not, you need to use a load cell of creep precision 0.01% or even 0.005% to make 300g/0.01g scale, or 600g/0.01g. Huazhun model 651C is especially designed for jewellery scale or electronic balance of 300g/0.01g, 600g/0.01g.