1Configuration of small data display, support voltage and current testing at the same time, data display clear. 2With backlight display function, it can also operate normally at night. 3With backlight display function, it can also operate normally at night. 4Fully automatic measurement, easy to use, is an ideal tool for laboratories, factories, radio enthusiasts and families. 5Support data retention function and automatic shutdown function, low power consumption, stable performance, long service life.