Marhynchus USB Tester - 4-30V 0-6.5A

1. [COMPREHENSIVE MONITORING] Keep of voltage, current, power, and capacity in real time. 2. [COMPATIBILITY] Supports 4-30V voltage and 0-6.5A current for various devices. 3. [STORAGE FEATURE] Power-off storage maintains accurate data for 4. [IPS LCD DISPLAY] Clear 0.96" screen shows charging status and measurements. 5. [CHARGER ASSESSMENT] Evaluate charger quality with ease for optimal performance. Specification: Item Type: USB Tester Material: ABS Voltage: 4-30V Current: 0-6.5A mAh: 0-999999mAh mWh: 0-999999mWh Timing: 0-99 hours Power: 0-200W Charging Internal R: 0-999.9ohm Grouping: 1-9 groups Internal Temperature: 0-80℃ D Positive Voltage: 0-10V D Negative Voltage: 0-10V How to Use: (1) Click the button to view the saved charging data for groups 1-9. (2) Long press the button for 3 seconds to clear the saved charging data for a single group. (3) Quickly double click the button to switch display pages. (4) Long press the button while plugging in the power, the system will automatically calibrate the voltage and current. After entering the calibration interface, release the button, and after successful calibration, the system will automatically return to the main function interface for normal use. Note: When the voltage or current is inaccurate during power on or there is current displayed, please follow the above steps for calibration using a 5V power supply. The system will automatically calibrate to 5.05V for voltage and 0.0 for current (do not calibrate with load, otherwise the current calibration will be 0.0 causing inaccurate current). The device is calibrated at the factory, so only use this function under special circumstances. PackageList: 1 x USB Tester 1 x User Manual