1. Real-time detection of the appliance's charging status, voltage, current, and other indicators; 2. The tester is widely used in the quality inspection of 3C digital and peripheral products with Type-C/USB interface. It is the first choice for electronics enthusiasts; 3. It uses a 0.96-inch IPS high-definition color LCD screen, which can be connected in two directions, 160-degree wide viewing angle, high brightness, and long service life. 4. Supports identification of QC2.0, QC3.0, PD, fast charging protocols; 5. Internal use of the instrument's sampling circuit, together with a unique precision algorithm, ensures the product's accuracy and stability at the hardware and software level; 6. With power-off storage function, when the mobile power is turned off, it can store capacity and energy data, which is convenient for subsequent viewing and is convenient for measuring the mobile power source's energy capacity; 7. Can help us clearly understand the load resistance and current discharge, and better understand the load's scope of use. Voltage: 4-30V Current: 0-6.5A mAh: 0-999999MAH Milliwatt-hour: 0-999999MWH Timing: 0-99 hours Power: 0-200W Charging resistance: 0-999.9 ohms Grouping: 1-9 groups Internal temperature: 0-80 degrees Color: White Material: plastic Package contents: 1 x USB tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.