Comprehensive test coverage: This advanced tester is capable of testing semiconductors with voltages from 0 to 3500V, ensuring wide applicability for a wide range of electronic components Versatile: Ideal for testing a wide range of components, including istors, diodes, MOSFETs, triodes, LEDs, and metal oxide varistors (MOVs), making it an essential tool for electronic diagnostics Convenient power management: Equipped with a built-in lithium battery, it ensures portability and continuous use. It features a Type-C charging port for fast charging Digital display for enhanced visibility: The tester has a digital display panel that provides clear and intuitive readings, making it suitable for use in any lighting conditions Accurate and reliable: Designed to provide precise measurements and withstand voltage testing, this tester is essential for both professional and amateur electronic engineers Adjustable output voltage: DC 0V-3500V Voltage display accuracy: 0.3% Adjustable output current: 50uA-5mA Output mode: constant voltage, constant current output Maximum power: 5 Voltmeter resolution: 100V below 0.1V, 100V above 1V Battery capacity 700mA Charging current: 550mA Charging interface: TYPE-C (charging indicator red, full power indicator green) Charging adapter: 5VIA mobile phone charger rechargeable Protection function: 80 over-temperature protection (high temperature indicator blue) Lithium battery undervoltage: battery below 3.3V lights up blue Specification:B:Red light/A:Blue light/C:Green Light Colour:As Shown Material:plastic Package Contents: 1 x istor Tester Kit 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.