Portable Power Source Testers: The USB tester detector has a wide testing range and can measure and detect many electronic devices. For example, the second generation ut658 series USB tester can check USB chargers, portable power supplies, data cables and other electronic charging devices. Detect and protect charging equipment Our USB detector can monitor charging efficiency at any time to protect the safety of charging equipment. Can perform voltage and current overload detection. The material is ABS safety material LCD DisplayThe digital power capacity tester has a backlit LCD display. Ut658 measures the output voltage, current, energy, capacitance, circuit equivalent resistance, d+ and d voltage of the USB data cable and can be read clearly in low-light environments < p>Dual interfaceOur USB detector has UT658A, UT658C and UT658 dual interfaces. These 3 types can be selected arbitrarily according to your needs and can handle the choice of mainstream charging interfaces Great engineering testing toolsThe series is designed to be accurate, reliable, stable and portable. They are excellent tools for applications such as production verification, engineering testing and DIY enthusiasts. Number of parts delivered: 1 0.05-5.00ADC, resolution: 0.01A (Type-C) 4.00-24.00VDC, resolution: 0.01V Welcometomeet