Round Digital DC Voltmeter 4-100V LED – Car Motorcycle Monitor
Round Digital DC Voltmeter 4-100V LED – Car Motorcycle Monitor
Mini Round LED Digital DC Voltmeter – Real-Time Voltage Monitoring for Cars, Motorcycles & More
Keep your vehicle's electrical system in check with this compact Round Digital DC Voltmeter. Featuring a bright LED display and high-precision integrated circuit, this plug-and-play voltage monitor delivers accurate real-time readings across a wide DC 4V–100V range — ideal for cars, motorcycles, electric vehicles, solar power systems, and DIY electronics projects. Made in Mainland China.
Key Features
- High-Precision Voltage Detection: Built-in high-accuracy integrated circuit chip provides voltage measurement error within ±0.1V with continuous real-time data refresh, helping you detect abnormal voltage before it causes damage to electrical components.
- Crystal-Clear LED Display: High-luminance LED digital tube with a scratch-resistant PC panel and 5 optional display colors (Red / Blue / Yellow / Green / White) for clear, at-a-glance readings even in direct sunlight.
- Durable Flame-Retardant Housing: Premium fire-resistant ABS engineering plastic shell offers outstanding heat resistance, impact resistance, and corrosion resistance — built to perform reliably in demanding environments like engine bays and outdoor setups.
- Plug-and-Play Installation: Comes pre-wired with 22AWG pure copper connecting wire and a pre-crimped PH2.0 terminal — no complicated configuration needed. Most users complete installation in minutes, even without electronics experience.
- Wide Compatibility: Supports DC 4V–100V measurement, making it compatible with 12V and 24V automotive systems, motorcycles, electric vehicles, solar power systems, and a wide range of low-voltage DIY electronic projects.
Specifications
| Measurement Range | DC 4V – 100V |
| Accuracy | ±0.1V |
| Outer Diameter | 30mm (fits standard 28mm mounting hole) |
| Shell Color | Black |
| Display Colors | Red / Blue / Yellow / Green / White (optional) |
| Material | Flame-retardant ABS shell, scratch-resistant PC panel, high-brightness LED, pure copper wire |
| Package Contents | 1 × Digital Voltmeter + 1 × Connecting Cable |
| Country of Origin | Made in Mainland China |
Applications
- Car & motorcycle battery voltage monitoring (12V / 24V systems)
- Electric vehicle charge level tracking
- Solar power system voltage detection
- DIY electronics and low-voltage circuit testing
Notes
- Product photos are for illustration purposes only; please refer to the specifications above for exact dimensions.
- Minor measurement differences may occur due to manual measuring methods.
- Actual display color may vary slightly from screen images due to monitor calibration differences.
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Learn more: FuelEconomy.gov driving efficiency guidance
Frequently Asked Questions
Q: What voltage range does this digital voltmeter support?
A: This round LED digital voltmeter supports a wide DC 4V to 100V measurement range, making it suitable for 12V car batteries, 24V truck or motorcycle systems, electric vehicles, solar panels, and other low-voltage DC circuits.
Q: How do I install this voltmeter in my car or motorcycle?
A: Installation is straightforward. The unit comes with a pre-wired 22AWG pure copper cable and a pre-crimped PH2.0 connector — simply connect the wires to your DC power source and mount the 30mm body into a standard 28mm panel hole. No soldering or programming is required.
Q: Can I choose my LED display color?
A: Yes! This voltmeter is available in five LED display colors: Red, Blue, Yellow, Green, and White. Select your preferred color at the time of purchase to match your vehicle's interior or dashboard style.
Q: Is this voltmeter suitable for outdoor or solar power systems?
A: Absolutely. The flame-retardant ABS housing and scratch-resistant PC display panel are designed to withstand harsh environments, including outdoor installations such as solar power systems, making it a reliable choice for off-grid setups as well as automotive use.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.