DC Digital Voltmeter Ammeter Panel 0-100V 10A Dual Display Voltage and Current Meter with Red Blue LED

$4.28 USD

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DC Digital Voltmeter Ammeter Panel — 0–100V / 10A, Dual Display, Red & Blue LED

A dual-display DC panel meter combining a digital voltmeter (0–100V range, red LED display) and a digital ammeter (0–10A range, blue LED display) in a single compact module. The dual display allows simultaneous monitoring of both voltage and current in DC power supply, battery monitoring, solar charge controller, and DIY electronics applications. The module includes a shunt resistor for current measurement and requires a separate power supply for the display (typically 4.5–0V DC).

Technical Specifications

Parameter	Voltmeter	Ammeter
Measurement Range	0 – 100V DC	0 – 10A DC
Display	3-digit red LED	3-digit blue LED
Resolution	0.1V	0.01A
Accuracy	±1% ±0.1V	±1% ±0.01A
Shunt Resistor	N/A	Included (75mV / 10A)
Display Power Supply	4.5–30V DC (separate from measured circuit)
Operating Temperature	−10°C to +65°C
Panel Cutout	~45 × 26mm (check datasheet)
Certification	CE, RoHS

Wiring Guide

Wire	Connection
Red (VCC)	Display power supply positive (4.5–30V)
Black (GND)	Display power supply negative / circuit GND
Yellow (V+)	Voltage measurement positive (up to 100V)
Blue (I+)	Current shunt positive (load current in)
Blue (I−)	Current shunt negative (load current out)

Typical Applications

DIY Power Supply: Panel meter for DIY bench power supply displaying output voltage and load current simultaneously
Battery Monitor: Battery voltage and discharge current monitor for 12V, 24V, and 48V lead-acid and lithium battery systems
Solar Charge Controller: Solar panel output voltage and current monitoring for DIY solar charge controller and off-grid power systems
EV / E-Bike: Battery voltage and motor current monitor for electric bicycle and electric vehicle battery management
Load Testing: Voltage and current measurement during load testing of power supplies, batteries, and DC-DC converters

FAQ

Q: Can the display be powered from the measured circuit?
A: Yes, if the measured circuit voltage is within the display power supply range (4.5–30V). For circuits above 30V (up to 100V), a separate 5–12V power supply is required for the display.

Q: Can I measure currents above 10A?
A: For currents above 10A, use an external shunt resistor with a lower resistance value and recalibrate the ammeter, or use a higher-current panel meter module (50A, 100A versions available).