Superior Performance: USB multifunction tester with IPS HD color LCD display, bi directional connectivity, 160 degree wide viewing angle, high brightness and long life. Widely Compatible: USB C power tester is designed with Type C interface, which can be used for Type C interface 3C digital and peripheral products, such as cell phones, laptops, chargers, car chargers, etc. Real Time Detection, Support Protocols: USB tester real time detection of electrical appliances charging status, voltage, current, power and other indicators, support QC2.0, QC3.0, PD, for SAMSUNG fast charging protocol recognition. Power Failure Storage: USB tester has a power failure storage function, when the mobile power is disconnected, it can store capacity and energy data for subsequent viewing and easy to measure the energy capacity of the mobile power. High Accuracy: The USB C power tester's internal sampling circuitry of professional instruments and unique accuracy algorithms ensure the accuracy and stability of the product at both hardware and software levels.