1、LCD Display: Using high-definition color LCD display, charging status, voltage, current, power and other data can be seen at a glance. 2、Easy to Carry: Compact size, easy to use, no need for professional wiring, just plug into the interface, you can detect the USB power charging status in real time. 3、Button Function: Click the button to view power, watt-hour, and milliamp-hour. Press and hold the key for 3 seconds to clear all the saved data such as timings, watt-hours and milliamp-hours. 4、Power Failure Automatic Memory Function: After power failure, only the data used after 30 seconds can be recorded, the data within 30 seconds cannot be saved after power failure. 5、Widely Compatible: Automatically recognizes fast charging protocols, supports QC2.0, QC3.0, PD, VOOC fast charging protocols. Specifications: Color: Black / White (Optional) Model: KWS-V30 Material: ABS Voltage: DC 4-30V Current: 0-6.5A Minimum Test Current: 0.02A Timing: 0-99H Power: 0-195W Milliampere-Hour: 0-99999mAh Watt-Hour: 0-999Wh Item Size: 250 * 26 * 13mm / 9.84 * 1.02 * 0.51in Item Weight: 25g / 0.88oz Package Weight: 28g / 0.98oz Package Size: 15 * 10.5 * 1.1cm / 5.91 * 4.13 * 0.43in Package List: 1 * Type-C Tester 1 * User Manual (English)