【Uses】Designed to accurately and safely solve a variety of electrical problems in the automotive and household sectors. 【With Data Hold Function】Measuring instrument with data hold function, data is easier to read. 【Large Digital Display】Features a large digital display for quick battery checks and accurate results. 【Multifunction】Voltage test function for AC and DC voltages. Low battery indicator function. 【Supports Buzzer/Diode On/Off Tester】Supports buzzer and diode test function, overload protection function.