Clear Electric Energy (mWh) (4) Fast Four-Click to Clear Time (00:00:00) (5) Fast Five-Click: Replace the cumulative data storage group number (NO.X) (6) Long Press the Button: Clear capacity, electric energy and time (mAh, mWh, 00:00:00) (7) Long Press the Screen to Flip -- in "Screen rotation" display interface (8) When the screen is black, long press the button to enter the background mode (9) In background mode, short press to the second item and then long press to calibrate the current (at no-load) to zero. (10) In the over-voltage low-voltage over-current setting interface, double-click to add the value, three-click to subtract the value, and when adding and subtracting, press and hold for the continuous addend and subtraction. Specifications: Type: without BT/ with BT (Optional) Screen Color: Multicolor Screen Type: IPS LCD Screen, 12800 Pixels Resolution: 160*80 Case Color: Black Material: ABS Voltage Measuring Range: 3.60V~36.0V Current Measuring Range: 0.00~5.10A Capacity Range: 0~99999mAh Electric Energy Range: 0~99999mWh Power Measuring Range: 000.00~150.00W Resistance Measuring Range: 1~999.9Ω Temperature Measuring Range: 0~80℃ Maximum Timing: 999h 59min 59s Input Interface: Type-C/ 5A USB Output Interface: Type-C/ USB USB D ' Voltage Range: 0V~2.99V USB D - Voltage Range: 0V~2.99V Refresh Time: ＞500ms/time Measuring Rate: about 0.5time/s Self Current Consumption: ＜0.02A Working Environment: -10~'60℃, 10%-80% non condensing, 80~106kPa Item Size: 66.5 * 60.5 * 11.0mm / 2.62 * 2.38 * 0.43in Item Weight: 16g / 0.56oz Package Size: 133.5 * 102.5 * 16.5mm / 5.26 * 4.04 * 0.65in Package Weight: 35g / 1.23oz Package List: 1 * Type C USB Tester 1 * OTG Connector 1 * User Manual