Fangrui Product Details 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 Transistors, 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. Adjustable Output Current: 50ua-5ma Out Suitable For Everyday Use