DC 100V Digital Voltmeter Ammeter 3-Wire LED Panel Gauge
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$9.75
Sale price
$9.75
Regular price
$12.06
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DC 100V Digital Voltmeter Ammeter 3-Wire LED Panel Gauge
$9.75
Sale price
$9.75
Regular price
$12.06
Three-Wire DC Digital Voltmeter & Ammeter – Compact LED Panel Gauge
Monitor your DC voltage with confidence using this compact Three-Wire Digital Voltmeter. Designed for motorcycles, electric bikes, cars, and DIY electronics projects, this panel-mount meter displays readings on a bright 0.56-inch LED digital tube — available in your choice of Red, Green, or Blue to match your setup.
Key Features
- Wide Measurement Range: Accurately reads DC 0–100V with an allowable error of just ±1% (±1 digit)
- Three-Wire Connection: Simple wiring with a 20cm pre-attached lead for fast, clean installation
- Bright LED Display: Three-digit 0.56-inch LED digital tube — choose Red, Green, or Blue
- Fast Refresh Rate: Updates approximately every 200ms for near real-time readings
- Compact Panel-Mount Design: Overall dimensions 47 × 29 × 21mm; panel cutout 46 × 27mm — fits neatly into dashboards and enclosures
- High Input Impedance: >100KΩ ensures minimal load on your circuit
- Lightweight: Weighs approximately 14.6g — no added bulk
- Broad Operating Temperature: -10°C to 65°C for reliable performance in varied environments
Technical Specifications
| Measurement Range | DC 0 – 100V |
| Power Supply Range | DC 3 – 30V |
| Input / Output | DC 0 – 30V (do not exceed to avoid damage) |
| Allowable Error | ±1% (±1 digit) |
| Input Impedance | >100K ohms |
| Working Current | Red <23mA | Green <18mA | Blue <13mA |
| Refresh Rate | ~200ms |
| Display | 3-digit 0.56" LED digital tube |
| Lead Length | 20cm |
| Overall Dimensions | 47 × 29 × 21mm |
| Panel Cutout | 46 × 27mm |
| Net Weight | ~14.6g |
| Operating Temperature | -10°C – 65°C |
| Display Colors | Red, Green, Blue (selectable) |
Perfect For
- Motorcycles & electric bikes (electromobiles)
- Automotive battery monitoring
- DIY electronics, solar panels & battery packs
- Go-karts, ATVs & powersports vehicles
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Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: What does the three-wire DC digital voltmeter measure?
A: This digital voltmeter measures DC voltages in the range of 0 to 100V, making it ideal for monitoring car batteries, motorcycle electrical systems, electric bikes, and DIY electronics. It uses three wires: one for power supply, one for ground, and one for the voltage signal being measured.
Q: How do I install the three-wire digital voltmeter in my vehicle?
A: Installation is straightforward. The meter includes a 20cm pre-attached lead. Connect the power supply wire to DC 3–30V, the ground wire to negative, and the signal wire to the voltage source you wish to monitor (up to 100V DC). Mount it in a 46 × 27mm panel cutout and secure in place. Always ensure connections do not exceed the rated input to avoid damage.
Q: Can I choose the LED display color?
A: Yes! This voltmeter is available in three LED display color options — Red, Green, and Blue — so you can choose the one that best matches your vehicle's dashboard or electronics enclosure aesthetic.
Q: Is this voltmeter suitable for motorcycles and electric bikes?
A: Absolutely. Its compact 47 × 29 × 21mm body and lightweight 14.6g design make it a perfect fit for motorcycle dashboards, electromobile handlebars, and other space-limited installations. It operates reliably across a wide temperature range of -10°C to 65°C.
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.