Eiechip LED Digital Voltmeter Ammeter, Mini DC Digital Multimeter 100V 10A, Blue Red LED Amp Dual Digital Display Volt Meter Gauge, Car Current Monitor Tester 0.28"

[CHARACTERISTIC]1 Display Voltage and current simultaneously in different colors, red for Voltage, Blue for current (the current is Measured in the negative rail). 2 Require external power supply; with reversed connection protection. 3 Ground wire of testing end and power supply terminal is the same wire; quick refresh of about 500 MS/time. 4 With built-in shunt, has Voltage and current calibration potentiometers.
[WITH MINI SIZED]48 x 29 x 21 mm, wide measuring range(dc 0-100v; 0-10A) and high accuracy percent (± 1 digit).
[WIDE APPLICATION] Eiechip dc voltmeter ammeter has handy connection and wide application, for example, it can be applied to monitoring storage battery, DC adjustable power supply, or voltage and current changing state of other device.
[PACKAGE INCLUDE]1x Digital Volt Ampere Meter.2Pcs x Cable.
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Our products include Ammeters, Light Emitting Diodes, Boost Converters, Automotive Fuses, Laser Diodes, Electrolytic Capacitor Kits, Diode Assortment Kit,, Glass Tube Fuses, Alligator Clips, Dupont Wire, Resistors,etc.
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Wiring Diagram Of Volt Amp Meter

0.28" Digital Voltmeter Ammeter

The Thick Wire Is Connected In Series Between The Negative Poles, The Thick Black Wire Is Connected To The Negative Pole Of The Power Supply To Be Tested, The Thick Red Wire Is Connected To The Negative Pole Of The Load, And Cannot Be Reversed, And The Yellow Wire Is Connected To The Positive Pole Of The Measured Power Supply.

Digital Voltmeter Display

The Thin Red Wire Is Connected To The Power Supply. The Power Supply Cannot Exceed 30v.

What you get:

1x Digital Volt Ampere Meter
2Pcs x Cable

LED Digital Voltmeter Ammeter

Volt Meter Display

The voltage between the thin red and thin black
lines must be within DC 4.5-30V
The ammeter can only be connected to the negative of the device under test

LED Digital Voltmeter Ammeter

Precautions for Dc Amp Meter

When the black thin line vacant, it is better to use insulating tape around the exposed part of the wire, to prevent short circuits
If just be used as a voltmeter, it is recommended that the yellow line and the black line were connected together, to prevent the ammeter digital flashing

LED Digital Voltmeter Ammeter

Integrated Shunt could use it directly

DC 100V 10A Amp Voltage current volt amp meter tester integrated shunt.
You don't need to purchase extra shunt

LED Digital Voltmeter Ammeter

Wiring of Dc Panel Volt Current Meter

Black line (thin): vacant or buck circuit (module) negative
Red line (thin): power supply+
Black line (thick): COM, common measuring
Red line (thick): PW+, measuring terminal voltage input positive
Yellow line (thick): IN+, current input+