240W USB C Power Meter: The digital multimeter USB tester can check the charging performance of the output wall/car/solar panel charger and USB charging cable. Measurement voltage: 4V-30V;Measurement current: 0-12A. Support for Additional Charging Protocols: The usb power meter supports charging protocols such as PD2.0, PD3.0, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH VOOC, Super VOOC..... USB C Tester3 Parameters: The usb cable tester not only displays instantaneous voltage, current, power, and temperature, but also counts the continuous working time, consumed power, as well as the maximum voltage, maximum current, and maximum power during the entire charging process. Power Bank Capacity Power Consumption Meter: Before usb meter testing the power bank, please fully charge it, insert it.