... Overload protection 4.Tare the load in full range Digital BalanceCharacteristics:1, Firm,Fast,Reliable2, Easy to carry, ... data interface5, Automatic outside calibration, touch a button, you can use weights to realize the outside calibration automatically ... diameterExternal diameterPowerOutputinterfaceYP15000115000g0.1gΦ130mm245*185*66mmAC220V50HzRS232C(if you need) Digital Balance Electronic Scale