0.28inch 0-100V Three Wire DC Voltmeter Red

Ultra-Compact 0.28-Inch 3-Digit LED Display: Features a bright red 3-digit LED digital display module engineered for high-contrast visibility and instant voltage monitoring in compact enclosures and control panels.

Wide 0V - 100V DC Measurement Range: Supports flexible direct current voltage measurement from 0V to 100V DC with high accuracy and automatic decimal point positioning below 10V.

Versatile 3-Wire Circuit Configuration: Employs a standard 3-wire connection design (Power, Signal, Ground) allowing the meter to measure down to 0V DC using an independent auxiliary power supply (3.0V- 30V DC).

Reverse Polarity Protection: Built-in anti-reverse connection protection safeguards internal micro-circuitry against permanent damage from accidental wire transpositions during installation.

Integrated Panel Mounting Tabs: Equipped with two side mounting hole flanges for easy screw installation onto custom electronic project boxes, battery chargers, or vehicle dashboard panels.

Low Power Consumption & Fast Refresh Rate: Consumes minimal operating current ( <20mA) with a fast sampling refresh rate (approx 200ms/time) for real-time voltage tracking.

Board & Screen Construction: High-quality printed circuit board (PCB) integrated with a red 0.28-inch 7-segment LED display module and pre-soldered color-coded lead wires.

Electrical Specifications:

Voltage Measurement Range: 0V - 100V DC.

Power Supply Input Voltage: 3.0V - 30V DC.

Lead Wire Length: Standard color-coded connecting wires (Red: Auxiliary Power +, Black: Common GND, Yellow/White: Voltage Measurement Signal +).

Installation & Handling: Handle the exposed PCB circuit board with care to prevent electrostatic discharge (ESD). Do not exceed the maximum auxiliary power input rating (30V DC).

Cleaning Advice: Gently wipe the red LED display face using a soft, dry electronic wipe or microfiber cloth. Avoid applying solvent chemical cleaners.

Essential Panel & DIY Battery Monitor: Position as a low-cost, high-utility digital panel meter for custom power supplies, automotive dashboards, solar setups, e-bike battery monitors, and RC hobby chargers.

Highlight 3-Wire Voltage Down to 0V Flexibility: Emphasize its 3-wire design over standard 2-wire meters, allowing users to accurately measure voltages below 3V all the way down to 0V.

Recommended Cross-Sell Add-ons: Pair with 0.28inch 0-100V Three Wire DC Voltmeter Green, 0.28inch 0-100V Three Wire DC Voltmeter Yellow, DC 0-100V/10A Digital voltage current meter, and 20A 75mV FL-2 Current Meter Shunt Resistor.

High-Volume Catalog Staple: An ideal budget impulse add-on to feature prominently in your Digital Voltage, Current, and Frequency Meter collection.