Listing Detail Tabs
This listing is for a mini USB voltmeter ammeter and energy meter that can can measure voltage, Amps, power and battery capacity, and time connected displaying all readings on a bright backlit LCD display.
Can easily measure the characteristics of any USB port (PC USB, cell phone charger, car charger, mobile battery bank power , etc. ) and any devices operating current, voltage, and charge-discharge capacity, performance
It can show the cause of any slow charging, which could be a charger issue or charging cable issue.Specifically in our experience cheaper USB charging cords can show significant current discharge even without the phone plugged in indicating internal leakage in the cable. This is a quick and easy test for a defective cord. Similarly many cheaper Chargers sold on Trade me with claims of 1 or 2 Amps output are readily shown to only output a fraction of the claimed specs by the use of this handy device
Suitable for the office laboratory or personal use, Easy to use as a standalone meter with no additional power supply, Plug and play.
Highest Quality.Keweisi Brand Model V20
Displays: Voltage, Current, Battery Capacity, Time
Input/ Output Voltage: 4-20 V (1% accuracy)
Voltage resolution: 0.01 V
Input/ Output Current: 0-3 A (1% accuracy)
Current resolution: 0.01 A
Battery Capacity: 0-99999 mAh
Supports new Quick charge devices with QC2.0 and QC 3.0 protocol like the latest Samsung LG Huawei and Sonyphones
Working time: 0-99 Hour
Size(L x W x H): 7.3cm x 2.3cm x 1.6cm
Before deciding please check my feedback to see what others think about this & my other products, my service, & my after sales support. Satisfaction guaranteed or money back on all my product sales.
If you ever find a lower total price including courier on Trade Me for any of my listings please advise us and we will try to better it,
I send multiple purchases combined whenever feasible, and when paid by credit card refund excess freight paid without being asked.