1.Broad Application: Designed to detect a wide range of components including NPN and PNP transistors, capacitors, resistors, diodes, N-channel and P-channel MOSFETs, IGBTs, JFETs, triacs, and even batteries, making it an indispensable tool for hobbyists, technicians, and engineers. 2.Infrared Detection: Capable of detecting infrared waveforms and Zener diodes, adding a layer of versatility to its testing capabilities. With the added function of testing infrared remote controls by aligning them with the IR light and pressing a button to display data codes and infrared waveforms. 3.Self-Calibration: Features a self-calibration function that ensures accurate readings and reliable performance over time, enhancing the tester's usability and precision. 4. Operation: Offers simple one-key operation for automatic detection and shutdown. For manual shutdown, users can press the multi-function button, making it efficient and energy-saving.