LCD Backlight Digital Display USB Ammeter Voltmeter Load Capacity Table Detector

Voltage and current measurement: the USB male plug is plugged into a 5V charger, the female plug is inserted into the mobile phone and other equipment, and the voltage and current parameters are read directly. Measure the quality of the MicroUSB cable: plug the mobile phone and other equipment, first plug the 5V charger with the male plug, remind the voltage, and then insert the MicroUSB cable of the 5V charger into the MicroUSB hole of the machine to memorize the voltage. , the voltage deviation is smaller The higher the quality of the MicroUSB cable. Measure the output capacity and efficiency of mobile power: first connect the mobile power to the mobile phone, turn on the mobile power, hold down the button until the capacity data returns to zero, insert the phone several times until the power is turned off automatically. The display capacity corresponds to the mAH of the mobile power output when the unit is next powered on. Data Change: Click the button to move to the next dataset, then double-click the button to move to the previous dataset. Clear Data: Hold down the button for more than 3 seconds to clear the group data.