Features Wide Application: The tester can be used to detect infrared waveforms and Zener diodes, the transistor tester can be widely used to detect NPN and PNP transistors, capacitors, resistors, diodes, transistors, N‑channel and P‑channel MOSFETs, IGBT, JFET, triacs and batteries. Self‑calibration Function: The transistor tester with self‑calibration function, after detection, align the infrared remote control with the "IR" light, then press the button on the remote control, if the detector successfully decodes, it will display the data code and infrared waveform Simple Operation: The transistor tester with simple operation, one‑key for operate, automatic detection and shutdown, the shutdown countdown is displayed on the monitor, and the shutdown countdown time can be extended, you can also press the multi‑function button to close the detector. Full Color Display: The transistor tester unlike the usual black and white display, it will display the color result. Different parameters are displayed in different colors for you to view the parameters. TFT Screen: Place the pin of the component in the corresponding area, and then toggle the small handle, the transistor tester will automatically test, and the result will be clearly displayed on the backlit TFT screen. Specification: Item Type: Transistor Tester Material: Engineering Plastic Display: 3.5-inch TFT screen Diode Range: <4.5V Zener Diode: Transistor Detection Area: 0.01-4.5V Zener Diode Detection Area: 0.01-30V Triac Switch Range: IGT <6mA Capacitance: 25pF-100mF Resistance: 0.01-50MΩ Inductance: 0.01mH-20H Battery: 0.1-4.5V Power Mode: Rechargeable lithium battery Package List:1 x Tester 3 x Wiring Cable 1 x LED Light  1 x Capacitance 1 x 3-Pins 1 x Charging Cable Package List 1 x Tester 3 x Wiring Cable 1 x LED Light 1 x Capacitance 1 x 3-Pins 1 x Charging Cable