This is a description of a Voltage Meter that also functions as a Current Voltage Capacity Battery Tester, USB Volt Current Voltage Doctor, Charger Capacity Tester, Meter, and Power Bank.
Mini Portable 0.91inch OLED Screen USB Charger Capacity Power Current Voltage Detector Tester MultimeterOver-voltage and under-voltage reminding for safe using.
Perfect tool that is useful,helpful and so practical.
Easy to use and to operate at affordable prices.1 * USB Charger Capacity Power Current Voltage Detector Tester