... and a half of the digital multimeter and the DC input and output functions of source,including the different range measurement and ... , accuracy: ±(0.001% RD+0.005% F·S), input resistance: >5 MΩ.Output:0-15V, accuracy: ±(0.001% RD+0.005% F ... :Recharging battery inside machine 6V, power consumption: <0.6WExternal power: 220V, 50Hz6. Work conditions: temperature(5~50 °C), humidity<90%7 ...