DROK Micro OLED USB 3.0 Multimeter Review

DROK Micro OLED USB 3.0 Multimeter Review
Product Link: http://amzn.to/1NGfALq

Product Description
Size:OLED USB 3.0
Parameters:
Product model: USB meter (H)
Voltage range: DC3.700-13.00V
Voltage accuracy: ± (0.3% + 2words)
Current range: DC0.000-3.000A
Current accuracy: ± (0.8% + 3words)
Capacitance accumulation: 0-99999mAh; 0-700Wh
Capacitance resolution: 1mWh; 1mAh
Idle discharge: about 10mA
Display screen: 0.91" OLED screen
Update rate: 2 times/s

Product functions:
1. Mode selection: you can press the key to choose among direct mode, quick charge mode and disconnected mode.
2. Over-voltage and under-voltage alarm: when voltage is higher than 5.3V or is less than 4.7V, it shows the arrow to inform you of over-voltage and too-low voltage. And the arrow will not stop flashing until voltage is withing normal range.
3. Current zero calibration: the USB meter might have larger testing error in terms of small current due to aging components and changing environment.To deal with such case, you need to have this meter done the current zero calibration.
4. Screen rotation: long press the KEY for about 4 seconds and LED will light on, the release the KEY when LED light off, in this way, its display screen will rotate.
5. Screen closing: long press the KEY for about 6 seconds and release the KEY later to close the display screen.
6. Capacitance unit switch: press the KEY for about 4 seconds and release the KEY when LED light on and later light off, then you can choose the USB meter to display capacitance in mAh or mWh.

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