Universal DC LED Digital Voltmeter 5–48V Battery Voltage Monitor
Universal DC LED Digital Voltmeter 5–48V Battery Voltage Monitor
Always Know Your Battery's Status at a Glance
The Universal DC LED Digital Voltmeter is a compact, easy-to-install voltage monitoring gauge designed for cars, motorcycles, boats, ATVs, UTVs, campers, caravans, travel trailers, and more. With its bright 3-digit LED display and anti-interference design, you'll always have an accurate, real-time read of your vehicle or system battery voltage — whether you're on the road or at camp.
Made in Mainland China.
Key Features
- Wide Voltage Range: Accurately measures DC voltages from 5V to 48V, making it compatible with 6V, 12V, 24V, and 48V systems.
- Bright LED Digital Display: 3-digit LED tube display available in your choice of Red, White, Blue, Green, or Orange — easy to read in any lighting condition.
- Twist-and-Lock Installation: Simple panel-mount design fits a 1-1/8" (36mm) hole in panels up to 0.25" thick; secured with a nylon retaining nut — no special tools needed.
- Reverse Connection Protection: Built-in safeguard prevents damage from accidental reverse polarity connection, protecting both the meter and your wiring.
- Anti-Interference Circuit: Engineered to deliver stable, accurate readings even in electrically noisy automotive environments.
- Waterproof & Flame-Retardant: Durable eco-friendly plastic housing rated for operating temperatures from -20°C to +85°C, built to withstand tough conditions.
- Universal Compatibility: Works with cars, motorcycles, boats, ATVs, UTVs, RVs, caravans, and virtually any DC-powered system in that voltage range.
- Mini & Lightweight: 36mm diameter compact form factor takes up minimal panel space while delivering maximum visibility.
Specifications
| Measurement Range | 5V – 48V DC |
| Display | 3-digit LED digital tube |
| LED Color Options | Red, White, Blue, Green, Orange |
| Panel Hole Size | 36mm / 1.42 in diameter |
| Max Panel Thickness | 0.25 in |
| Operating Temperature | -20°C to +85°C |
| Material | Eco-friendly flame-retardant plastic |
| Color | Black housing |
| Battery Included | No |
| Country of Origin | Mainland China |
Perfect For
- Monitoring car, truck, or motorcycle battery charge levels
- RV, camper van, caravan, and travel trailer electrical systems
- Boats, ATVs, UTVs, and off-road vehicles
- DIY electrical projects and solar/battery storage systems
- Any DC-powered system requiring continuous voltage monitoring
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Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: What voltage range does this digital voltmeter support?
A: This LED digital voltmeter measures DC voltages from 5V to 48V, making it compatible with 6V, 12V, 24V, and 48V battery systems — suitable for cars, motorcycles, boats, RVs, ATVs, and more.
Q: How is the DC LED digital voltmeter installed?
A: Installation is straightforward using the Twist-and-Lock system. Simply drill or find a 1-1/8" (36mm) hole in your panel (up to 0.25" thick), insert the voltmeter, and secure it with the included nylon retaining nut. Then connect the anode and cathode wires to your DC system — no special tools required.
Q: Does this voltmeter protect against reverse polarity connection?
A: Yes! The voltmeter features a built-in reverse connection protection function. If the wires are accidentally connected in reverse polarity, the circuit safeguards the meter and your wiring from damage.
Q: What LED display color options are available?
A: The 3-digit LED display is available in five color options: Red, White, Blue, Green, and Orange. Choose the color that best suits your vehicle's interior or panel design when ordering.
Q: Is this voltmeter waterproof and suitable for outdoor or marine use?
A: Yes, the housing is waterproof and made from flame-retardant, eco-friendly plastic rated to operate between -20°C and +85°C, making it well-suited for marine, outdoor, and all-weather automotive applications.
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.