... Firm,Fast,Reliable 3.Automatic outside calibration 4.Overload protection Spinning BalanceCharacteristics:1, Firm,Fast,Reliable2, Easy to carry, ... to realize the outside calibration automatically.6, Overload protection and Tare the load in the full range.7, Applications: ... .11,Shock system with four levels, good environmental adaptability, and ensure the safe use .12,Simple operating , clear reading ...