Wide compatibility for component testing - Detect NPN and PNP transistors, capacitors, resistors, diodes, transistors, N-channel and P-channel MOSFETs, IGBT, JFET, triacs, and batteries. Infrared and zener diode testing - Capable of detecting infrared waveforms and zener diodes for quick verification. Self-calibration and infrared remote testing - Self-calibration function: align the infrared remote control to the "IR" light after detection, then press the button on the remote control. When the detector decodes successfully, it displays the data code and infrared waveform. Easy operation and automatic features - Easy operation with one-button input. - Automatic detection and shutdown for convenient use. - You can also press the multi-function button to close the detector. - Place the pen of the component in the corresponding Ber