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wholesale page :product/10-pcs-lot-USB-3-0-High-voltage-white-4-bit-OLED-detector-voltmeter-ammeter-capacity/923042_32461439044.html
Note:
It forbid for being used for inductive load, eg: the load with motor and fan. it can be used digital products, eg: mobile phone,power bank,USB flash drive and etc..
About quick charge mode, the meter can not be applied to the phone own charger. and this mode can be compatible with more than 98% of intelligent device while the USB port cannot transfer data
Technical Parameter:
Product model:USB 3.0 meter-H-whiteVoltage range:DC03.70-13.00V
Voltage accuracy:± (0.2% + 1words)Current range:DC0.000-3.000A
Current accuracy:± (0.8% + 3words)Capacity accumulation:0-99999mAh
Capacity resolution:1mAhEnergy accumulation range: 0-99999mWh-999Wh
Product weight:14g (package 46g)Update rate:2 times/s
Idle discharge:about 10mADisplay screen:0.91” OLED screen
Port mode: Compatibility: USB 2.0, USB 3.0Product size:64mm*21.6mm*11.2mm(L*W*H)
Power :0-39.00W
Customer Feedback :1.https://www.youtube.com/watch?v=KmZO3O3BU90
2. https://www.youtube.com/watch?v=FEI0f3Vt6tU&list=PLNcr2Rj_07PGexXolEzWu5_pFNOcO3g68&index=5
3. https://www.youtube.com/watch?v=clevbCzWXIs&feature=youtu.be
The correlaion table 7kinds USB meter
if you want to see USB load , click thishttps://product/Industrial-Grade-Electronic-Load-resistor-USB-Interface-Mini-Discharge-battery-test-capacity-with-fan/923042_32528721413.html?spm=2114.12010612.0.0.6QifA2
if you want to see 3 bit USB 2.0 version, click thisgroup/USB-2-0-3-BIT/923042_500522966.html
if you want to see 4 bit USB 3.0, click thisgroup/USB-3-0-4-BIT/923042_500553922.html
if you want to see 4 bit USB 3.0 high voltage version, click thisproduct/USB-3-0-High-voltage-white-4-bit-OLED-detector-voltmeter-ammeter-power-capacity-tester-meter/923042_32388082261.html
if you want to see 3 bit USB 3.0 protection meter , click thisproduct/OLED-USB-3-0-protection-instrument-meter-voltmeter-ammeter-power-capacity-voltage-current-mobile-usb-power/923042_32436833041.html
if you want to see USB 3.0 comprehensive tester , click thishttps://product/RD-USB-3-0-OLED-Comprehensive-Tester-5-bit-current-4-bit-voltage-voltmeter-ammeter-power/923042_32804740758.html?spm=2114.12010612.0.0.wUG7aC
if you want to see UM24 Color Display Tester , click thishttps://product/RD-UM24C-USB-2-0-Color-LCD-Display-Tester-voltage-current-meter-Voltmeter-amperimetro-battery-charge/923042_32845522857.html?spm=2114.12010612.0.0.5c64a8f2ZLeM5S
USB Tester related series of products：
Item | USB 2.0 3 bit | USB 3.0 4 bit | USB 3.0 4 bit-H | USB 3.0 Protector | USB 3.0 comprehensive | UM24/UM24C |
UM25/UM25C | USB Load (Industrial /Civil) |
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Port mode | USB 2.0 | USB 2.0 USD 3.0 | USB 2.0 USB 3.0 | USB 2.0 USB 3.0 | USB 2.0 USB 3.0 | USB2.0 |
USB2.0 | No |
Voltage range | 3.70-13.0 | 3.700-7.000 | 03.70-13.00 | 3.70-9.99-13.0 | 04.00-24.00 | 4.50-24.00 | 4-24.000V | 3.7-13V |
Current range | 0.00-3.00 | 0.000-3.000 | 0.000-3.000 | 0.00-3.00 | 0.0000-3.0000 | 0.000-3.000 | 0-5.0000A | 0.15-3.00 |
Voltage curve | NO | NO | NO | No | 04.0-24.0V | 04.50-24.00V | 4-24.000A | No |
Current curve | NO | NO | NO | No | 0.00-3.00A | 0.000-3.000A | 0-5.0000A | No |
Temperature range | NO | NO | NO | -10℃～65℃ | -10℃～65℃ | -10℃~100℃/0℉~200℉ | -10℃~100℃/0℉~200℉ | 40℃ |
Run time | NO | NO | NO | 0-99h59min | 0-99h59min59s | 0-99h59min59s | 0-99h59min59s | No |
Capacity accumulation | 0-99999mAh | 0-99999mAh/ 0-99999mWh-700Wh | 0-99999mAh/ 0-99999mWh-999Wh | 0-9999mAh-99.99Ah / 0-9999mWh-130Wh | 0.0000-9.9999-99.999Ah/ 0.0000-9.9999Wh-999.99Wh | 0-99999mAh/0-99999mWh | 0-99999mAh/0-99999mWh | No |
Protection function | NO | NO | NO | OVP,OCP,OTP, UVP,OCP | OVP,OCP,OTP, UVP,OCP | No | No | No |
OLED Brightness | NO | NO | NO | No | 0-7 level | 0-5 level | 0-5 level | No |
Delay closing screen time | NO | NO | NO | No | 1-9 mins | 1-9 mins | 0-9 mins | No |
Charge mode | Direct Mode, | Direct Mode, Quick Charge Mode, Disconnected Mode | Direct Mode, Quick Charge Mode, Disconnected Mode | Direct Mode | Direct Mode, Quick Charge Mode, Disconnected Mode | Direct Mode | Direct Mode | No |
Support QC 2.0 /3.0 | QC 2.0 QC 3.0 | NO | QC 2.0 QC 3.0 | QC 2.0 QC 3.0 | QC 2.0 QC 3.0 | QC 2.0 QC 3.0 | QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG | No |
Data group | NO | 9 data group | 9 data group | 2 data group | 9 data group | 10 Data group | 10 Data group | No |
Other function | 1,Screen rotation 2,Power-down storage 3,Over-voltage and Under-voltage reminding | 1,Screen rotation 2,Power-down storage 3,Over-voltage and Under-voltage reminding 4.Capacity unit switch function 5.Shut-down screen 6.Current zero calibration | 1,Screen rotation 2, Power-down storage 3,Over-voltage and Under-voltage reminding 4.Capacity unit switch function 5.Shut-down screen 6. Current zero calibration | 1,Screen rotation 2,Power-down storage 3,Over-voltage and Under-voltage reminding 4.Capacity unit switch function 5.Shut-down screen Current zero calibration | 1,Screen rotation 2,Power-down storage 3,Over-voltage and Under-voltage closing 4.Shut-down screen | 1,Input voltage/current/power detection 2,Capacity/Energy detection 3,Data Store 4,Quick Charge Recognition QC2.0/QC3.0 5,PC Bluetooth Communication 6,Micro USB Cable Impedance Measurement | 1,Input voltage/current/power detection 2,Capacity/Energy detection 3,Data Store 4,Quick Charge Recognition QC2.0/QC3.0/ APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG5,PC Bluetooth Communication on and support Android Application 6, Micro USB Cable Impedance Measurement 7,Load connecting detection function | Ball-bearing Fan (Long life ball-bearing fan; High velocity, low noise, powerful; support long time discharging and factory products burn-in test. ) |
adjustable electronic load resistor (current 0.15-3.00A). click hereproduct/Industrial-Grade-Electronic-Load-resistor-USB-Interface-Mini-Discharge-battery-test-capacity-with-fan/923042_32528721413.html
Operating instructions:
When contact the power supply, the screen shows welcome window firstly and then displays current connection mode. Then it comes into the main interface. It has three connection modes, direct mode, quick charge mode and disconnected mode(Only for USB 2.0).
Direct mode is that the two middle signal wires are conducted directly. In this mode, USB port can transfer data normally. Quick charge mode is that the two middle signal wires are connected with the special charge chip. This chip can simulate quick charge agreement from different manufacturers to make different device matched automatically. So it can get quick charge. This mode can be compatible with more than 98% of intelligent device while the USB port cannot transfer data. Disconnected mode is that the two middle signal wires are disconnected. In this mode, USB port cannot transfer data.
Mode Selection
Keep pressing the button first and then connect power supply. After the welcome window passed, you can set the three modes. When the mode you need appears, you can release the button. The mode selection is done when you see the BLN flashes one time.
Current zero calibration function
The component aging and temperature variation after long-term use may appear tiny error when it measures small current. To avoid this error, you can keep pressing the button on the back to connect power supply in the no-load terms, until the three modes passes (as shown in the figure), then the LED lights. The calibration is accomplished
Over-voltage and Under-voltage reminding function:
When the voltage is over 5.3V (less than 4.7V), the arrow
(
) will be flashing to remind the voltage is too high (low). When the voltage becomes to 4.7V-5.3V, the arrow will be disappeared.
In the main interface, you can click the button to switch data set one by one. And it provides for storing and checking 0 to 9 totally ten groups data set
Capacity stored function
When data set is between the 1 to 9 group, the current capacity will be stored after power off. And the stored capacity will be accumulated after power on. When the data set is 0 group, the current capacity will be stored after power off. When power on next time, the stored mAh is blinking displayed .When the new mAh is up to 1 mAh, the stored mAh will be covered, and the values will start over
In the main interface, double click the button on the back (the time interval of the double click is within 0.5s), then you can get into data check window and see the capacity of the current data set. In this window, you can click the button to check the next data set, and when you keep pressing the button more than 2s, the current data set will be cleared. And if you double click the button, it will come back to the main interface.
Counting the capacity and efficiency of the mobile power bank battery:
Ah data * output voltage ÷battery voltage ÷ efficiency = mobile power bank battery Ah (output voltage is typically 5V, the battery voltage is generally based on 3.7V, typically by 85-90% efficiency)
Capacity unit switch function:
In the main interface, keep pressing the button, until the LED lights (time about 2s), release the button, the capacity will be switched between mAh and mWh.
Screen rotation function:
In the main interface, keep pressing the button, until the LED lights and then goes out (time about 4s), release the button, the screen is rotated and automatically stored for being used next time conveniently.
Shut-down screen function:
In the main interface, keep pressing the button more than 6s, then release the button, the screen display can be shut-down and come into power saving mode. The LED is flashing in this moment and you can click the button to come back to the main interface
Test Picture
Products Display
