LCD Screen Mini Creative Phone USB Tester Portable Doctor Voltage Current Meter Mobile Power Charger Detector

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• This test can be a USB charging current, voltage, discharge capacity, intelligent devices.
• It can be very easy to find digital device charging problem.
• Tester three dimensional size 60 * 28.5 * 15mm (without cable), about 15cm length of the line.
• The only button on the tester is used to view and test data switch, the tester can store 10 groups of test data

1. Input Voltage: 3V – 7V
2.Input current: <3.4A
3. Parameters that you can test: Voltage of battery. Current of battery, value of discharging capacitor.
(Total ten parameters)
4. Communication function: Yes
5. Parameters adjusting function:Yes. Equipment for parameters adjustment: One electronic load,
one constant current source. Voltage of constant current source should be set to 8.5V
There are 3A, 2A, 1A and 0.3A models for current adjusting.
Here is a example for 3A:
When you set electronic load at 3A model, the current will be adjusted step by step.
It will cost you about 10 seconds and you can see the result changing procedure in the LCD screen.
When you see the 3A result shown in LCD screen, the adjustment process is finished. You can shut
off the electronic load and the parameters will be saved automatically.
6.Clean the data: Push the button until the parameters changed to next sets of parameters. Then release the button.
Then the next sets of parameters will be started and they will start from zero.
7. Check the parameters: Quick beat the button double times(within 0.5s), then it is checking model.
The LED background will be flash.Then you can see the next set of parameters in LCD screen. Quick beat the
button double times again, you release the parameters checking model. LED background be be light with flash.
8. Over voltage or under voltage: An arrowhead will be shown in LCD screen and LED background will flash.
Push the button and LED will be light without flash.
It will last 30s.
9. Turn on model: The LCD screen will show all parameters within 1s when you connect power supply
by Micro USB or male plug of USB with wire.(It is to check whether the LCD screen is good or not).
Then you can see the parameters used last time(capacitor and which set of parameters). You also can
see the current voltage, current and over voltage or under voltage. Please see following illustration.
USB output port can be connected to a data line, a discharge resistor or the like cable devic
comprising a data communication function, the data does not affect the data transmission line.
Test specifications, voltage can not exceed 7V, current can not exceed 3.5A.

When the voltage is lower than 4.7V on the instrument display or higher than 5.3V,
the LCD screen will flash, it does not affect the use.

Voltage of constant current source should be setted to 8.5V，if your voltage is over 30V, we afraid that it will broken, hope you can understand, thank you.

​No retail box.

USB Charger Doctor Current Voltage Charging Detector Mobile Power Current and Voltmeter Ammeter Tester

Can easily measure the operating current of the output voltage of the USB port and equipment 2. smallsize , no power , and other ancillary equipment, plug and play also detect USB charger output voltage and current are standard suitable for factories, Laboratory and users.

USB Current Voltage Tester

Condition: New

Measuring range: DC 3v – 9v, current: 0-3a (error: ± 1%), 5a biggest support

5a current (if more than 3a, error will be larger than 3%)

Color is shown as pictures
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!

1 X USB Current Voltage Tester

• 
• 
• USB Charger Doctor Mobile Battery Tester Power Detector Voltage Current Meter

  
  Detection range:
  Voltage: 3v-7v error 0.1v
  Current :0-2.5A error 0.01A
  It can measure the USB-powered devices empty and .
  Easy to use and practical.
  Compact and easy to carry, no additional power supply, plug and play.
  It can easily measure the output voltage of the USB port and the device operating current or load voltage
  Detect any USB charger such as PC USB, home charger, car charger.
  Wide range of applications, any phone, any electronic product, Easy to use.
  suitable for factories, laboratories and personal use.

  

  Size:63*21-34*15mm
  Net weight:15g
  Color:Blue

  Packing content:
  1 x USB power current and voltage tester

  

• new arrive USB Load Resistors Mobile Power Aging Resistance Module 1A 2A charge current detection

  Brand new and high quality.
  It's normal when welding resistance may occur heated white smoke or odor phenomenon.
  New products can freely be switched with a switch, very convenient and easy to use.
  USB load resistance, is mainly to do discharge test, if the charger or mobile power supply output current is 2A, load meter power is 5V * 2A = 10W, if the output current is 1A, then the power load is 5V * 1A = 5W.
  Switch and usb interface design.
  Color: Green.
  Rated Power: 5W-10W.
  Technology: Ceramic Composition.
  Resistance: 1A-2A.
  Type: Fixed Resistor.
  Size: 7.3cm x 1.8cm x 1.0cm.

  More about item

  usbmobile powerload resistorpower resistoragingresistance measuringcurrent dischargeresistor

  Dischargeresistorswill become hot, the temperature at80 ~ 85 °,pleasenote thatanti-scald.

  You caneasilytest mobilepower chargingtreasure, cell phone charger, USBpower supplyoutputcurrent isstandard,as long as theUSBport tothe resistanceabovethe line.Andcanmove thepower and USBpower adapterto dothe aging test.
  

  Discharge resistor will burn,But very hotPlease pay attention to the protection, anti-heat your hot, and work.

  Internal tested resistance and appearance in General.

  Treasure can facilitate testing of mobile power charging, mobile phone chargers, USB power supply output current standards, as long as the USB port up top on the line of resistance. And aging tests on mobile power and USB power adapter.

  2 a resistive load by two cement resistor in parallel with 5 ohm 10W power into 2.5 euro

  Note: the discharge current is marked around, not 1.00A or 2.00A, is close to this value, such as 1.8A, 2 a display, such as relative differences, for normal conditions, please, thank you!

  Package included:

  • 1 x USB Load ResistancePower Resistors Mobile Power Aging Resistors module 2A 1A