Digital 10 in 1 Colorful LCD Display USB Voltage Current Tester- White

Specifications:
1. The current: 0-5A
2. Voltage: 4-30V
3. Time :0-99 hours power: 0-150W
5. Capacity: 0-999999mAh
6. Internal temperature :0-80 Centigrade
7. Grouping :0-9 groups
8. Power: 0-999999mAh
9. The charging resistance: 0-999.9 Ohm
10.Positive voltage: 0 to 10V
Negative voltage: 0-10V
Instructions:
1: click the button to view 1-9 sets of charging data.
2: press the button for 3 seconds to take out a set
Fee data.
3: double click the button to rotate the screen.
4. Long press the button to insert the USB interface to enter voltage calibration:
Such as:
(1) if (5.526V) is displayed, double-click the button quickly
(2) if it is displayed (5.528V), click the button to increase the display voltage.
(3) quickly double-click the button, if the display (5.528V), click the button to reduce the display voltage.
(4) quickly double-click the button again. If the button is displayed (5.526V), click the button again and the screen will display current calibration
The system will automatically perform current calibration and return to the function home page after the calibration is completed.

Product weight: 0.0150 kg                                                  
                                   Package weight: 0.0250 kg                                                  
                                   Product size (L x W x H): 5.66 x 2.47 x 1.12 cm / 2.23 x 0.97 x 0.44 inches                                                  
                                   Package size (L x W x H): 8.00 x 4.00 x 2.00 cm / 3.15 x 1.57 x 0.79 inchesPackage Contents: 1 x USB Test Meter