Features: The Optocoupler Online Tester offers a comprehensive solution for testing transistors, MOSFETs, IGBTs, power transistors, and thyristors, catering to electronic component needs. Featuring intuitive LCD display and fully operation, this tester ensures high efficiency with its easy to use. Suitable for electronic engineers, repair technicians, students, educators, and DIY electronics enthusiasts performances evaluation and fault diagnosis. Perfect for use in electronic repair shops, laboratories, production lines, and on site maintenance, facilitating quick identification of faulty component and enhancing operational efficiency. With its broad compatibility across various models and specifications, this instrument is indispensable tool for ensuring quality and reliability in electronic projects. Specifications: Component:ABS Color:Purpled/Green Size:Approx.14.3x1.9cm/5.63x0.74inch Package Includes: 1Pc Optocoupler Tester note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.