DC 7–30V Waterproof Digital Voltmeter & Battery Indicator

Gaqqee DC 7–30V Waterproof Digital Voltmeter & Battery Level Indicator

Keep a precise eye on your battery's voltage and charge status with the Gaqqee DC 7–30V Waterproof Digital Voltmeter. Compact, rugged, and CE/RoHS certified, this high-precision LED meter is engineered for electric vehicles, distribution cabinets, DIY electronics, and assembly-line testing — anywhere reliable voltage monitoring matters.

Key Features

• Wide Voltage Range: Accurately measures DC 7–30V with a resolution of 0.1V and a reading speed of approximately 2 seconds per cycle.
• Multi-Battery Compatibility: Supports ternary lithium (L03S–L07S), lithium iron phosphate (F03S–F08S), and lead-acid (12V/24V) batteries — covers virtually every common battery type.
• Dual Display Modes: Double-click the switch to toggle between real-time voltage and percentage display — instantly see how much charge remains.
• Low-Voltage Alert: The display flashes a clear warning when the battery charge drops too low, giving you advance notice before power runs out.
• Power-Off Memory: Automatically saves current data even during an unexpected power cut so you never lose your settings or readings.
• Reverse Polarity Protection: Built-in protection circuit prevents equipment damage from accidental incorrect wiring.
• Waterproof & Durable: Compact 36.9 × 36.9 × 22 mm body with a waterproof cap — suitable for outdoor and workshop environments.
• Easy Controls: Brief press = on/off; hold = enter settings mode; double-click = toggle voltage/percentage display.
• CE & RoHS Certified: Meets international safety and environmental standards.

Specifications

Battery Type Settings

• Ternary Lithium [L]: L03S to L07S
• Lithium Iron Phosphate [F]: F03S to F08S
• Lead-Acid [P]: 12V / 24V

What's in the Box

• Battery Level Indicator × 1
• Nut × 1
• Waterproof Cap × 1

Ideal Applications

Electric vehicles, e-bikes, solar storage systems, high/low voltage distribution cabinets, DIY battery packs, electronics repair benches, and assembly-line quality testing.

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Frequently Asked Questions

Q: What battery types does this digital voltmeter support?

A: The Gaqqee DC 7–30V voltmeter supports three common battery chemistries: ternary lithium (3S–7S), lithium iron phosphate (3S–8S), and lead-acid (12V and 24V). You can select the correct battery type through the settings mode by pressing and holding the switch.

Q: How do I switch between voltage and percentage display?

A: Simply double-click the switch button to toggle between the real-time voltage readout and the battery charge percentage display. This makes it easy to check either the exact voltage level or a quick at-a-glance charge status.

Q: Is this voltmeter safe to use outdoors or in wet environments?

A: Yes. The unit includes a waterproof cap and is designed to withstand exposure to moisture, making it suitable for outdoor installations, electric vehicles, and workshop environments. It is CE and RoHS certified for added confidence.

Q: What happens if I accidentally connect the wires with the wrong polarity?

A: The built-in reverse polarity protection circuit automatically safeguards both the meter and your equipment from damage caused by incorrect wiring connections, giving you peace of mind during installation.

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.