Waterproof Digital Voltmeter DC 5-48V LED Car Battery Gauge
Waterproof Digital Voltmeter DC 5-48V LED Car Battery Gauge
Waterproof Round Digital Voltmeter – DC 5–48V LED Battery Voltage Gauge
Keep a close eye on your vehicle's electrical system with this compact, waterproof digital voltmeter. Designed for easy panel mounting, this round LED gauge delivers instant, accurate voltage readings across a wide 5–48V DC range — making it ideal for cars, motorcycles, boats, ATVs, UTVs, campers, caravans, and travel trailers. The bright 3-digit LED display ensures readings are easy to see at a glance, even in low-light conditions.
Made in Mainland China.
Key Features
- Wide Voltage Range: Measures DC 5V–48V, suitable for 6V, 12V, 24V, and 48V systems
- Waterproof & Flame Retardant: Built to withstand harsh outdoor and automotive environments
- Twist-and-Lock Installation: Mounts easily into a 1-1/8" (28mm) panel hole up to 0.25" thick; secured with a nylon retaining nut — no special tools needed
- Bright 3-Digit LED Display: Choose from Red, White, Blue, Green, or Orange lamp color (optional)
- Reverse Connection Protection: Built-in safeguard prevents wiring damage if leads are accidentally reversed
- Universal Compatibility: Works with cars, motorcycles, boats, ATVs, UTVs, campers, caravans, travel trailers, and more
- Compact & Lightweight: 36mm (1.42") diameter — fits neatly into dashboards and control panels
- Eco-Friendly Materials: Durable black plastic housing
Specifications
| Measurement Range | DC 5V – 48V |
| Voltage Range | 6–24V DC (nominal system) |
| Display | 3-Digit LED Digital Tube |
| LED Color Options | Red, White, Blue, Green, Orange |
| Diameter | 36mm / 1.42 in |
| Panel Hole Size | 1-1/8" (approx. 28mm) |
| Interface | Anode and Cathode |
| Material | Flame-retardant, eco-friendly plastic |
| Color | Black |
| Battery Included | No |
| Country of Origin | Mainland China |
What's in the Box
- 1 × Digital Voltmeter Gauge
- 1 × Nylon Retaining Nut
Related Products You May Like
- Microfiber Car Wash & Detailing Towels
- Crystal Car Rearview Mirror Decoration Pendant
- High-End Car Fragrance Pendant – Elegant Interior Accessory
Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: What vehicles is this digital voltmeter compatible with?
A: This waterproof voltmeter is universally compatible with cars, motorcycles, boats, ATVs, UTVs, campers, caravans, and travel trailers — essentially any DC-powered vehicle or system with a voltage between 5V and 48V.
Q: How do I install this voltmeter in my vehicle's dashboard?
A: Installation is straightforward. Simply drill or use an existing 1-1/8" (approx. 28mm) hole in your panel (up to 0.25" thick), insert the voltmeter, and secure it from behind using the included nylon retaining nut. Connect the anode and cathode wires to your DC power source and the display will power on immediately.
Q: Can I choose the LED display color?
A: Yes! This voltmeter is available in five LED display colors — Red, White, Blue, Green, and Orange. Please select your preferred color option before adding to your cart.
Q: Does this voltmeter protect against reverse wiring?
A: Yes. The voltmeter features built-in reverse connection protection, so if the wires are accidentally connected in reverse, the unit will not be damaged — giving you peace of mind during installation.
Q: Is this voltmeter suitable for outdoor or wet environments?
A: Absolutely. The housing is waterproof and made from flame-retardant material, making it well-suited for outdoor, marine, 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.