DC 4–100V LED Digital Voltmeter with IP67 Waterproof Protection

Keep a sharp eye on your vehicle's electrical system with this compact DC Digital Voltmeter. Measuring 4–100V DC with ±0.1V accuracy, it delivers fast, reliable voltage readings on a bright 3-digit LED display — easy to read in full daylight or complete darkness. Whether you're monitoring a car battery, RV power system, boat, or off-road rig, this panel-mount gauge is built to perform.

Key Features

High-Precision Measurement: Reads DC 4–100V with ±0.1V accuracy for dependable voltage monitoring across a wide range of vehicles and equipment.
IP67 Waterproof & Dustproof: Fully sealed against dust ingress and capable of withstanding rain and splashes — ideal for marine, automotive, and outdoor applications.
Reverse Connection Protection: If positive and negative leads are accidentally swapped, the display simply goes blank — the unit stays safe and undamaged, protecting your investment.
Bright 3-Digit LED Display: Available in red or green, the vivid LED readout ensures clear visibility at any time of day or night.
Wide Compatibility: Suitable for cars, SUVs, trucks, motorcycles, RVs, boats, marine equipment, off-road vehicles, and distribution systems.
Easy Panel Mount Installation: Screw-in panel mount design makes installation straightforward and secure in dashboards, control panels, or enclosures.
Two-Wire Connection: Simple two-wire setup — no separate power wire needed for operation within the supported voltage range.

Specifications

Voltage Measurement Range	DC 4–100V
Power Supply Voltage	DC 12V–24V
Measurement Accuracy	±0.1V
Display Type	3-Digit Bright LED (Red / Green)
Waterproof Rating	IP67 (dustproof & waterproof)
Mounting Type	Panel Mount / Screw-in
Protection	Reverse connection protection
Material	Durable plastic
Quantity	1 x DC Voltage Gauge
Country of Origin	Made in China

Applications

This versatile voltmeter is ideal for a wide range of uses including: cars, trucks, SUVs, motorcycles, RVs, camper vans, boats, marine equipment, solar power systems, battery banks, off-road vehicles, forklifts, and electrical distribution panels.

Package Includes

1 x DC Digital LED Voltmeter Gauge

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For guidance on electrical safety and proper wiring practices, visit OSHA's Electrical Safety Resource.

Frequently Asked Questions

Q: What voltage range does this DC digital voltmeter measure?

A: This voltmeter measures DC voltages from 4V to 100V with ±0.1V accuracy, making it suitable for a wide range of 12V, 24V, 48V, and higher-voltage DC systems including vehicle batteries, solar setups, and marine electrical systems.

Q: Is this voltmeter suitable for outdoor and marine use?

A: Yes. The IP67 waterproof and dustproof rating means the unit is fully protected against dust and can withstand water splashes and rain, making it dependable for marine vessels, boats, RVs, off-road vehicles, and other outdoor installations.

Q: What happens if I connect the wires incorrectly?

A: This voltmeter features built-in reverse connection protection. If the positive and negative wires are accidentally swapped, the LED display will simply go blank rather than displaying a reading — and the unit itself will remain safe and fully intact, with no damage caused.

Q: How is this voltmeter installed?

A: The voltmeter uses a panel mount / screw-in installation method. It is designed to be mounted flush into a dashboard, control box, or panel cutout and secured with the included mounting hardware. The two-wire connection keeps the setup simple and clean.