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DC 0.01-400V 0.1-300A Multifunctional Wireless Digital Bi-directional Voltage Current Power Meter Ammeter Voltmeter Capacity Coulomb Counter

DC 0.01-400V 0.1-300A Multifunctional Wireless Digital Bi-directional Voltage Current Power Meter Ammeter Voltmeter Capacity Coulomb Counter

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This meter can measure DC voltage, current, power, charge and discharge capacity, watt, time and other parameters in both directions. With LCD display, several parameters displayed on the screen at the same time, is convenient for readings. At the same time, it also has many protecting functions, such as over-voltage protection, over-current protection, under-voltage protection, limit protection, etc. 

LCD color display voltage, current, power, capacity and time, etc.
Several parameters displayed on the screen at the same time, easy to read.
Bi-directional measurement of the current, no need to change the wiring direction.
Wireless data transmission between the meter and measuring board, convenient for use.
Set each address individually, and view the measurement parameters from plurality of measuring board in one meter.
When use multiple machines simultaneously, the machine can be set individually for each channel to avoid mutual interference.
You can also use standard USB cable for wired communication.
With memory function when powered off.
Screen lock, timing off, adjustable brightness functions.
VAC-1030A equipped with relay to achieve over-voltage/over-current/under-voltage, limit protection, etc.
Suitable for monitoring the output voltage and current, as well as the battery charge and discharge applications.
Small size, light weight, convenient to carry.

VAC-1100A and VAC-4300A can also achieve the protecting functions like VAC-1030A's, but users need to buy the relay separately.

Model Type: VAC-1030A / VAC-1100A / VAC-4300A(Optional)
Voltage Measuring Range: 0.01-120V(VAC-1030A/VAC-1100A); 0.01-400V(VAC-4300A)
Voltage Accuracy: 0.01V
Voltage Error: (+/-)1%+5 figures
Current Measuring Range: 0.01-30A(VAC-1030A); 0.1-100A(VAC-1100A); 0.1-300A(VAC-4300A)
Current Accuracy: 0.01A(VAC-1030A); 0.1A(VAC-1100A/VAC-4300A)
Current Error: (+/-)2%+5 figures
Power Measuring Range: 0-200KW
Capacity Measuring Range: 0-2000KAH
Watt Measuring Range: 0-4000KWH
Time Measuring Range: 0-999 Days
Address Range: A01-A99
Wireless Channel Setting Range: A-Z
Decimal display section will change automatically as data bits shift, for example, it display as 00.000AH, 
when the display exceeds 100AH, the display becomes 000.00AH
NCP: 0.01-30A(VAC-1030A); 0.1-100A(VAC-1100A); 0.1-300A(VAC-4300A)
OCP: 0.01-30A(VAC-1030A); 0.1-100A(VAC-1100A); 0.1-300A(VAC-4300A)
OVP: 0.01-120V(VAC-1030A/VAC-1100A); 0.01-400V(VAC-4300A)
LVP: 0.01-120V(VAC-1030A/VAC-1100A); 0.01-400V(VAC-4300A)
Display: LCD display
Time Delay Protection: 0-10S
Measurement Power Consumption: 0.4W
Display Power Consumption: 0.5W
Sampling Rate: 5 times/s
Communication Distance: 10m for single group in open area
Meter Power Supply: USB DC 5V or DC 10-30V
USB Cable Length: 3m
Meter Size: 76 * 43 * 23mm / 3 * 1.7 * 0.9in
Meter Weight: 37g / 1.32oz
Measuring Module Size: 91 * 59 * 50mm / 3.58 * 2.32 * 1.97in
Measuring Module Weight: 133-271g / 4.71-9.58oz
Package Size: 13 * 11 * 9cm / 5.12 * 4.33 * 3.54in
Package Weight: 340-480g / 12-17oz

Package List:
1 * Wireless DC Voltmeter 
1 * Measuring Module Board
1 * 3m USB Expansion Cable

English User Manual:


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  • By m***p

    September 8, 2017

    Item as described. Good transaction.

    Is this helpful? (0) (0)

  • By t***l

    August 23, 2017

    Fast Shipping! Easy transaction!

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  • By c***2

    May 10, 2017

    very, very fast! 10 days from China!!! perfect! thank you very much!

    Is this helpful? (0) (0)

  • By a***i

    April 11, 2017

    A good, compact (and low cost) product. Fast shipping. Thanks...

    Is this helpful? (0) (0)

  • By m***s

    April 6, 2017

    Accurate, great value, easy to use. Would like to see better transmit distance.

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  • By d***1

    April 5, 2017

    Tutto perfetto ottimo apparecchio

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  • By h***f

    January 22, 2017

    The item is perfect! I bought many same, but this is the best for my camper. Some thing is missing from the manual! You can calibrate the current and the voltage zero point. After I install, the meter is not correct, but after I found this setup, everything is good! The calibrate menu is same but the language and wireless channel setup, but is in the upper hidden menu. Thanks again!

    Is this helpful? (0) (0)

  • By ralf asmussen

    October 12, 2016

    Nach erfolgter Reklamation hat mir der Verkäufer anstandslos (!) ein zweites Gerät geschickt und obwohl -Übersee- keine Versandkosten oder Rücksendung gefordert. Ich nenne das kundenfreundlich hoch drei !!! Die Anzeige und das Messgerät arbeiten einwandfrei und zeigen bessere und genauere Daten als mein Verbautes. Die Bedienung ist trotz englischem kinderleicht.

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