Features: USB voltage tester 3.0- LCD- capacity power Voltmeter battery charge power-bank voltmeter ammeter. The Type-C USB tester supports QC2-.0/3.0-, Super VOOC- and supports electrical signal monitoring during PD-2.0-/3.0- fast- charging protocol, meeting the needs- of various mobile phone users. Power-off storage function that stores capacity and energy data when the mobile power is turned off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power. This USB-C Tester Measuring voltage: 4V-30V; measuring current: 0-6.5A. widely used in the quality inspection of 3C- digital peripheral- products-, and are the first- choice- for digital gamers and electronic enthusiasts. 1.Click- the button once to switch- screens in a cyclical manner; 2.Double-click the button to rotate the displayed content; 3.Press and hold the button (3 seconds): Clear all capacity, amount of electricity, and time-. Specifications: Material: ABS- Size: approx 143x62x26mm/5.6x2.4x1-inch Input/output voltage: 4-30V Input/output current: 0-6.5A Power: 0-195w Color: white/black Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xUSB-C Tester