1.Rechargeable accumulator inside, you can use the scale during
recharging. 2.Auto zero-setting when switch on the scale. 3.Auto zero-tracing. 4.1~30 times of accumulating. 5.Power supply: AC 220V (?0%) / 50 Hz, 110V/60HZ, DC 6V / 4Ah
(Rechargeable accumulator inside). 6.Working temperature range: 0 ℃ ~ +40 ℃ 7.Relative humidity: ≤ 85 %