The PIU Series 0.01% grade high precision DC tester is developed on Hangzhi multi-point fluxgate current measurement technology. There are few models in the PIU family, and the maximum current can be measured by PIU testers can be up to DC10,000A. The measurement accuracy can reach 0.01%, even 0.005%. The testers are widely used for calibration of battery charging and discharging testing system. Voltage measurement range: ± (0.1V -1000V),maximum allowable error: ± 0.005%; Current measurement range: 10mA~10,000A, maximum allowable error: ± 0.005%