Features: 1. 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. 2. It also can detect zener diode and has the function of self-calibration.One button operation, automatically detect and shutdown, and you can the multi-functional button to close the detector too. 3. After detection, align the infrared remote control with the "IR" light, then the button in the remote control, if the detector successfully decode it, it display the data code and infrared wave form. 4. Put the pins of component in corresponding area, then dial the little handle and the detector test it automatically, finally the results display on the back light TFT screen clearly. 5. Not like the usual black and white display, this detector show results in color. Specifications: Display: 3.5inch 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: Less than 6mA Capacitance: 25pF-100mF Resistor: 0.01-50MΩ Inductance: 0.01mH-20H Battery: 0.1-4.5V Power Mode: Rechargeable Lithium Battery ( INCLUDED) Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use size: 8.8 x 8 x 2.8cm Material: Plastic colour: As shown Package Contents: 1 x transistor tester 1 set wires 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.