Features: Multifunction: This USB tester is designed to detect voltage, current, capacity, electric quantity, power, temperature, resistance, charging time and other data of the USB C devices, which is convenient for testing power supply and quality. Detect Various Fast Charging Protocols: The Type-C USB tester supports QC2.0/3.0/4.0, SuperVOOCand supports electrical signal monitoring during PD2.0/3.0 fast charging protocol, meeting need of various cellphone users. Measuring Data is Guaranteed: Power-off save 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. Button Function: 1.Clickthe button once to switchscreens in a cyclical manner; 2.Doubleclicks the button to rotate the displayed content; 3.Press and hold the button (3 seconds): Clear all capacity, amount of electricity, and time. Wide Applicability: This USB C Tester Measuring voltage: 4V-30V; measuring current: 0-6.5A. Tester are widely used in the quality inspection of 3Cdigital peripheralproduct, and are firstchoices for digital gamers and electronic enthusiasts. Specifications: Material: Plastic Voltage: 4-30V Internal Charging Resistance: 0-999ohms Current: 0-6.5A mWh: 0-999999mWh Timing: 0-99 hours Temperature: -9~99degrees Mah: 0-999999MAH Power: 0-195W TYPE-C Female port: Input/Output TYPE-C public port: Output/Input Size: Approx. 5.7x2.6cm/2.24x1.02in Cable Length: Approx. 14.4cm/5.67in Color: White/Black Package Includes: 1x Digital Multimeter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.