USB Multimeter: ideal USB testing tool for measuring voltage, current, power, capacity and charging time for your smart phone charger, DC adapter, power bank, USB Cable and other device. 3 LCD Display: it has three display modes for displaying Amp and Volt in real-time. Temperature can also be displayed by switching the display mode; Double-USB Design: it can be plug and unplug via either side. Very easy to use; Pressing the key-button for 2-3 seconds,the data is cleaned and restart to record. The meter will issue alarm when the device is full charged. Quick Charging: Support Quick Charging 2.0, Compatible QC 3.0, BC 1.2; also, support to test your iPhone or Android phone; Ideal USB safety tester for your USB devices This is a Easilife Product, We offer you 100% risk-free satisfaction guarantee to let you buy with confidence.