Spinning Balance 1. RS232 data interface 2.Firm,Fast,Reliable 3.Automatic outside calibration 4.Overload protection Spinning BalanceCharacteristics:1, Firm,Fast,Reliable2, Easy to carry, is able to use battery-operated3, High contrast LCD display4, Bi-directional RS232 data interface5, Automatic outside calibration, touch a button, you can use weights to realize the outside calibration ...