DROK® OLED Digital Multimeter USB Port Tester Mobile Amperemeter Voltmeter Watt Power Monitor Meter Cable Checker Capacity Current Voltage Multi-in-1 Display Compatible with iPhone iPad Devices

Product description:
Weight: 0.03kg
Font color: Blue
Screen material: OLED
Dimension: 43x20x10mm(Length*Width*Height)
Voltage measurement range: DC 3.50-9.99V
Voltage accuracy: ±(0.3% + 1words)
Current measurement range: DC0.00-3.00A
Current accuracy: ±(0.5% + 2words)
Power measurement range: 0-30.00W
Capacity measurement range: 0-99999mAh

Product features:
1. It is the mini USB meter measuring voltage, current, power and capacity of mobile power supply
2. Its screen adopt OLED material and can clearly display all datas.

Product function:
1. Screen rotation function: Press the button on the back,the display interface can rotate 180 degree.
2. Power-off storage function: When power off,the accumulated MAH will be automatically stored.And the accumulated MAH will twinkle next time when item is power on. If the actual capacity reaches 1mah next time when item power on, then the accumulated MAH last time will stop twinkling, and the screen display actual capacity.
3. Over- and Under-voltage reminding: When the voltage is over 5.3V or less than 4.7V, there showing flashing arrow(^ 0r ˇ)

Package includes:
1pcs OLED USB Detector