Mini Digital Voltmeter Ammeter DC 100V 10A Dual LED Display
Mini Digital Voltmeter Ammeter DC 100V 10A Dual LED Display
4-Digit Mini Digital Voltmeter & Ammeter — DC 100V / 10A Dual LED Display
Monitor voltage and current at a glance with this compact 4-digit, 5-wire mini digital voltmeter ammeter. Featuring a bright dual LED display, this versatile panel meter is ideal for DIY electronics projects, battery monitoring, solar systems, power supplies, and more. Its small footprint makes it easy to embed in enclosures, control panels, or test benches without sacrificing readability.
Made in Mainland China.
Key Features
- Dual Measurement: Simultaneously displays DC voltage (0–100V) and current (0.000–9.999A) in real time
- Bright 4-Digit LED Display: Approx. 0.28-inch digits for easy reading even in low-light environments
- Wide Voltage Range: Measures DC 0–100V with a working voltage of DC 4V–30V
- Compact Size: Only 48 × 28 mm (1.89 × 1.10 in) — fits neatly into panels and project boxes
- Stable & Reliable: Efficient circuit design ensures consistent, long-lasting performance
- Wide Operating Temperature: Functions reliably from -10°C to 65°C (-14°F to 149°F)
- 5-Wire Design: Separate power supply wiring for accurate, independent measurements
Technical Specifications
| Measuring Voltage | DC 0 – 100V |
| Working Voltage | DC 4V – 30V |
| Measuring Current | 0.000 – 9.999A |
| Display Size | ~0.28 inch (4-digit LED) |
| Operating Temperature | -10°C to 65°C |
| Dimensions | 48 × 28 mm / 1.89 × 1.10 in |
| Wires | 5-wire configuration |
| Battery Included | No |
What's in the Box
- 1 × Mini Digital Voltmeter & Ammeter Module
Perfect For
- DIY electronics and maker projects
- Solar panel and battery bank monitoring
- DC power supply testing and verification
- RC vehicle and robotics power systems
- Custom control panels and enclosures
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Frequently Asked Questions
Q: What voltage and current ranges does this mini digital voltmeter ammeter measure?
A: This dual LED display meter measures DC voltages from 0 to 100V and DC current from 0.000 to 9.999A (up to 10A). The working/power supply voltage for the meter itself is DC 4V to 30V.
Q: Why does this meter use a 5-wire configuration?
A: The 5-wire design allows the meter's power supply to be independent from the circuit being measured. This prevents measurement errors that can occur when the meter shares the same ground or supply as the load, resulting in more accurate voltage and current readings.
Q: Is this voltmeter ammeter suitable for AC circuits?
A: No — this meter is designed exclusively for DC (direct current) circuits. It is not suitable for measuring AC voltage or current. Always verify your circuit is DC before connecting the module.
Q: Can I install this meter into a panel or custom enclosure?
A: Yes! At only 48 × 28 mm, this compact module is specifically designed for panel mounting. It fits easily into DIY project boxes, control panels, and enclosures, making it popular for power supplies, battery monitors, and custom electronics builds.
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.