It can be widely used to detect NPN and PNP transistor, capacitor, resistor, diode, triode, N-channel and P-channel MOSFET, IGBT, JFET, triac and battery etc. It can also be used to detect infrared wave forms. It also can detect zener diode and has the function of self-calibration. After detection, align the infrared remote control with the "IR" light, then press the button in the remote control, if the detector successfully decode it, it will display the data code and infrared wave form. One button operation, automatically detect and shutdown, and you can press the multi-functional button to close the detector too. Put the pins of component in corresponding area, then dial the little handle and the detector will test it automatically, finally the results will display on the backlight TFT screen clearly. Not like the usual black and white display, this detector will show results in color. Display: 160*128 TFT Screen Diode Range: Less than 4.5V Zener Diode:Transistor Detect Area: 0.01-4.5V Zener Diode Detect Area: 0.01-30V Triac Range: IGT Less than 6mA Capacitance: 25pF-100mF Resistor: 0.01-50M Inductance: 0.01mH-20H Battery: 0.1-4.5V Power Mode: Rechargeable Lithium Battery(INCLUDED) Operating Instructions: 1. Multi-function key has two actions: Short press: Press the key and not less than 10 ms, release key within 1.5 seconds Long press: Press the key more than 1.5 seconds 2. Power on: In the power off state, short press the multifunction key, the tester is turned on and automatically measured. Name:Transistor tester Colour:White Material:ABS Package Contents: 1 x TFT Transistor tester 1 x Electronic component set (with or without it is random and does not accept the designation) 3 x Test hooks 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.