This tool is an multifunction protocol capacity test tool, it integrated USB-A, Micro-USB, type-C interface, with 1.77 inch high definition display screen, using external 16-bit ADC, PD protocol physical chip, which can real-time monitoring of the voltage, current, power, capacity, recharging protocol, curve waveform and so on, come on and try it, it will not let you down. wholesale FNB48S C1 PD trigger Voltmeter.