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USB Charging Current / Voltage Detector Mobile Power Tester
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USB Charging Current / Voltage Detector Mobile Power Tester

- Ocean Blue

    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Oct 03 - Oct 05, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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  • interest-free You can enjoy a maximum of 0 interest-free installments, and may not enjoy this offer when placing orders with other products
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Material: plastic
Working range: voltage 3.5V - 7.0V; current 0A - 3A
Resolution: voltage 10mV current 1mA
Error: voltage < ± 1 percent current < ± 2 percent
Full-scale voltage drop: 200mV ( when measuring current )
Working temperature: 0 - 60 Deg.C
Very simple and practical small instrument:
◆Small and portable, no need for external power supply and other ancillary equipment, plug and play
◆It can detect any USB output power, charger, computer USB, car charger and mobile power
It can easily measure the no-load voltage of the USB port, the load voltage and the current when the device works, and judge the charging
Whether the performance of the device and the charging cable meets the requirements
◆Simple operation and wide application range: USB voltage and current are alternately displayed, and the test results are clear and clear, which are suitable for factories, laboratories and ordinary users


Dimensions and Weight

Product weight: 0.0150 kg
Package weight: 0.0180 kg

Package Contents

Package Contents: 1 x Mobile Power Tester, 1 x OPP

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Customer Reviews

4.96 out of 5
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  • Kestis
    Yes (0) Color: Ocean Blue
    Good product
    This USB Charging Current / Voltage Detector Mobile Power Tester - Ocean Blue 3 is very good. works really fine. I can measure in what voltage my device is charging and on what current. This gadget is very useful to check your power supplies or cables. Really satisfied and recommend to others.

    Nov 25,2019

  • Aurelian
    Yes (0) Color: Ocean Blue
    great for the price
    good and cheap little helper to indicate voltage and amperage. it shows each for a second and then switches to the other. so real time amperage observation is a challenge, but it was expected for the price. see my video for a closer look at the product in action.

    Sep 09,2019

  • Lubomir
    Yes (0) Color: Ocean Blue
    USB Charging Current / Voltage Detector Mobile Power Tester
    výborná vec pre potreby domácnosti. ukazuje celkom presne V aj A. Ja ju používam aby som zistil či nejaký spotrebič nabíja a kedy končí nabíjanie - ampére klasnú na nulu. z výrobkom som veľmi spokojný - používam ho už asi 4 roky

    great thing for household needs. shows quite accurately both V and A. I use it to find out if an appliance is charging and when charging ends - amperes classic to zero. I am very satisfied with the product - I have been using it for about 4 years

    May 06,2020

    Yes (0) Color: Ocean Blue
    tester voltaggio e amperaggio prese usb
    Legge amperaggio e voltaggio. Ci si rende conto di quello che arriva realmente nei nostri dispositivi usb quando li carichiamo o li infiliamo in una qualsivoglia presa.

    Jan 30,2019

  • M.Naveen Kumar
    Yes (0) Color: Ocean Blue
    cheap and better
    really useful product quality is good cheapest accuracy detector and I have my mi 2a power bank is that a fast charging support pls see my attached video how it works

    Nov 26,2019

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There are two key factors which will affect the time you receive your items.

Item processing time
After receiving your order,we require some time to test the product to ensure its quality.The exact processing time varies depending on the item.The average processing time is 3 working days.but this can also be affected by the item's stock status. For small quantity orders,the processing time is 1-3days while larger quantity orders may require 2-5days.
Shipping methods
China Warehouse:
Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
Unregistered Air Mail or Registered Air Mail United States 0.52% 44.87% 49.88% 3.5% 18.13
Spain, United Kingdom, Italy, Germany, France & Portugal 5.18% 43.44% 48.34% 1.17% 15
Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 2.96% 40.34% 52.54% 3.74% 18.66
Russia 0% 4.45% 84.41% 11.1% 28
Japan, Korea 0% 21.30% 68.80% 9.66% 17.75
Brazil 0% 0% 23.91% 72.09% 38.6
Turkey 0% 37.75% 59.05% 3.1% 20.33
Thailand, Singapore & Malaysia 0% 40.39% 56.12% 2.6% 16.2
Other countries 0.7% 38.79% 47.94% 8.56% 23.57
Priority Line United States 12.28% 79.05% 7.4% 0.52% 11.75
Spain, United Kingdom, Italy, Germany, France & Portugal 8.44% 66.56% 23.45% 0.45% 13.55
Russia 0% 3.48% 75.79% 20.04% 31
Brazil 2.21% 6% 61.29% 25.46% 30
Turkey 20.42% 77% 3% 0.08% 10
Australia 7.67% 86.60% 5.68% 0% 11
Korea 97.54% 1.57% 0.89% 0% 7
Japan 95.80% 2.09% 0% 0% 6.84
Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
Other countries 22.33% 30.8% 27.62% 17.64% 18.65
Expedited Shipping ALL countries(EMS) 3.8% 46.8% 26% 15% 14.8
ALL countries(DHL) 65.8% 25.75% 3.86% 0.37% 6.72
GW Warehouse: Typically 3-5 days to the UK, 3-7 days to other European countries.
USA Warehouse: Generally, 3-7 days to a USA address.
ES Warehouse: Generally, 2-5 days to the Spain, 3-7 days to the Portugal.
Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
Note: This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control. Generally speaking, we offer free shipping for USB Charging Current / Voltage Detector Mobile Power Tester to United States (US, USA), United Kingdom (UK, GB), Germany, Italy, France, Spain, Portugal, Poland, Brazil, Russia, Japan, Greece, Austria, Hungary, Slovakia, Czech Republic, Ireland, Lithuania, Israel, Denmark, Norway, Sweden, Canada, Australia, Netherlands, Korea, Turkey, Mexico, Ukraine, Romania, Columbia, Thailand, Singapore, Malaysia etc. Please choose the shipping methods for the final price.

Payment accepts PayPal,Credit Cards,Wire Transfer,Westem Union, YandexMoney,Webmoney,Boleto,OXXO and BKM as secure payment methods.

The most convenient payment method in the world.
Wire transfer
For orders which exceed $1,500,please contact us at
Note: please email us the order number,the amount transferred along with currency type,and the exact date of the wire transfer.
Western Union
Please contact us at for details.
Note: please email us the following information after you have paid via Westem Union:
· Control Number(10 digits)
· The exact amount sent along with the currency
· Name of sender.
· Address of sender
YandexMoney、 Webmoney
With YandexMoney and Webmoney, it is convenient and safe for you to pay via credit card、wallet or cash
For Brazil customers, we accept Boleto: you only need to fill in the payment information, remember your Boleto Voucher information and pay it within 3 days at any Boleto stores.
For Mexico customers, we accept OXXO: you can choose OXXO payment on our website, and then remember your OXXO Voucher information and pay it within 3 days at any OXXO stores.

Do you want to bulk buy ? Please submit your wholesale inquiry below. Please note we usually don’t offer free shipping on wholesale orders, but the wholesale price will be a big bargain.

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