Backlight function, DCV, ACV, DCA, Diode, Transistor & Continuity Test functions MST830L 3 1 ... voltage AC,Resistance,electrical Capacitance,temperature,diode testing with back light displayBacklight function, DCV, ACV, DCA, Diode, Transistor & Continuity Test functionsPackage include ... 70Ω, the machine buzzer soundDiodes: Shows similar to diode forward voltageTransistor hFF Test: NPN PNPTest range: 1- ...