A perfect addition to your lab to simplify data collection. This compact and full feature unit has a 3.5 inch digit display and can measure DC and AC voltage, DC current, Resistance, Diode, Transistor, and Continuity Test. The unit also includes a hold button, which can freeze the last value measured and keep it on the display. It requires 2 AAA batteries which are included and comes with test leads. It has a backlight for working in dark rooms.