WL-134 DUOYI DY3015C BATTERY TESTER WITH PRINTER is an instrument used to measure the voltage, current and capacity of batteries. This device is commonly used in the automotive industry, solar energy systems, electric vehicles and other battery-based applications. The DY3015C model can accurately measure the voltage and current of the battery and offers an integrated test method to determine the actual capacity of the battery. In addition, the instrument has a printer so that measurements and test results can be easily documented.