SainSmart Graphics Display M328 Inductor Capacitor ESR Table Tester Meter LCR The display is 12864 LCD backlit in white. Powered by 3.7V lithium battery (not included) or 5V external power source with USB port (USB cable Automatically test the pins of a component and show on the display. Measurement of the gate threshold voltage and the gate capacitance of the MOSFET. Recognize NPN and PNP transistors, N-channel and P-channel MOSFET, JFET, diodes, inductors, resistor