TCS-A Series Electronic Weighing Bench Scale Attention: 1.Rechargeable accumulator inside, you can use the scale during recharging. 2.Auto zero-setting when switch on the scale. 3.Autozero-tracing. 4.Switch among weighing, counting, percentum. Function of choosing Weight range. 5.Power supply: AC 220V (?0%) / 50 Hz, 110V/60HZ, DC 6V / 4Ah (Rechargeable accumulator inside). 6.Working temperature range: t0 ~+40 / 7.Relative humidity:≤85 % RH