Gaqqee 9-in-1 DC Voltmeter Ammeter Wattmeter LCD Monitor
Gaqqee 9-in-1 DC Voltmeter Ammeter Wattmeter LCD Monitor
Gaqqee 9-in-1 DC Voltmeter, Ammeter & Wattmeter — All-in-One Electrical Monitoring
Take complete control of your DC electrical systems with the Gaqqee 9-in-1 Multimeter. This compact yet powerful monitoring instrument simultaneously displays voltage, current, power, battery percentage, temperature, cumulative capacity, energy, operating time, and load impedance — all on a crisp 1.14-inch high-definition IPS LCD colour screen (135×240 resolution). Whether you're managing an automotive battery, solar setup, or DIY electrical project, this meter gives you real-time data at a glance.
Made in Mainland China. CE and RoHS certified.
Key Features
- 9 Measurements in 1: Voltage, current, power, battery %, temperature, cumulative capacity, energy, operating time, and load impedance — all on one screen.
- Flexible Current Ranges: Selectable 10 A (built-in shunt), 50 A, or 100 A measurement ranges to suit a wide variety of applications.
- Wide Voltage Range: Measures DC 0–100 V with ±1.00 V accuracy and 0.1 V resolution.
- Temperature Probe Included: Waterproof cylindrical NTC 10K sensor measures from -40°C to 120°C, with approx. 1 metre cable.
- High-Definition IPS Colour Display: 1.14-inch LCD with 135×240 resolution for clear, easy reading in any environment.
- Cumulative Data Logging: Records capacity (0–9,999,999 mAh), energy (0–9,999,999 mWh), and elapsed time (up to 999:59:59).
- Data Reset & Calibration: Supports cumulative data reset, no-load forced zeroing, and fine-tuning of voltage and current display values.
- Compact Panel-Mount Design: Measures only 47.7 × 28.7 × 17.5 mm with a 45 × 25.8 mm mounting cut-out — ideal for dashboards and enclosures.
- CE & RoHS Certified: Meets international safety and environmental standards.
Technical Specifications
| Operating Voltage | DC 4–30 V (XH-3P connector) |
| Voltage Measurement | DC 0–100 V | ±1.00 V accuracy | 0.1 V resolution |
| Current Measurement | 0.00–10 A / 50 A / 100 A (selectable) | ±0.1 A accuracy | 0.03 A resolution |
| Power Measurement | 0–1,000 W (10 A) / 0–5,000 W (50 A) / 0–9,999 W (100 A) |
| Capacity Range | 0–9,999,999 mAh |
| Energy Range | 0–9,999,999 mWh |
| Time Range | 0–999:59:59 (h:m:s) |
| Temperature Range | -40°C to 120°C (NTC 10K 3950 1% external probe) |
| Display | 1.14-inch IPS LCD, 135×240 resolution |
| Power Consumption | ~20 mA at 12 V DC |
| Dimensions | 47.7 × 28.7 × 17.5 mm |
| Mounting Cut-Out | 45 × 25.8 mm |
| Certification | CE, RoHS |
| Country of Origin | Made in Mainland China |
Wiring Guide (Summary)
- Thin Red Wire (XH-2.54-3P): Positive terminal of operating power supply — do NOT exceed 30 V.
- Thin Black Wire: Negative terminal of operating power supply; shares ground with thick black wire.
- Thin Yellow Wire: Voltage test wire — connect to positive terminal of the circuit under test.
- Thick Red Wire (VH-3.96-2P): Current measurement positive terminal — connect in series after the load's negative terminal.
- Thick Black Wire: Current measurement negative terminal — connect to the power supply's negative terminal.
- 10 A Range: Uses on-board alloy resistor shunt — connect directly per wiring diagram.
- 50 A / 100 A Range: Requires an external 75 mV shunt (not included — must be sourced separately).
Package Contents
- 9-in-1 Measuring Instrument ×1
- Cylindrical Waterproof Temperature Probe & Cable (approx. 1 m) ×1
- XH-2.54-3P Red/Black/Yellow Wires ×1
- VH-3.96-2P Thick Red/Black Wires ×1
⚠ Important Note: Products configured for 50 A or 100 A operation require an external 75 mV shunt resistor connected in parallel. The shunt is not included — buyers must provide or purchase one separately.
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Frequently Asked Questions
Q: What current ranges does the Gaqqee 9-in-1 Voltmeter Ammeter Wattmeter support?
A: The meter supports three selectable current measurement ranges: 10 A (using the built-in on-board shunt), 50 A, and 100 A. For the 50 A and 100 A ranges, an external 75 mV shunt resistor must be connected in parallel — this shunt is not included with the product.
Q: Can this multimeter monitor automotive battery systems?
A: Yes. The meter operates on DC 4–30 V and is well-suited for automotive, solar, and battery monitoring applications. It displays battery percentage based on voltage reference, and you can manually set the full-charge and low-charge voltage thresholds to match your battery type.
Q: What does the temperature probe measure and is it waterproof?
A: The included NTC 10K 3950 1% cylindrical probe measures external temperatures from -40°C to 120°C. It is waterproof, making it suitable for use in a variety of environments. The probe cable is approximately 1 metre long.
Q: How is the 9-in-1 meter mounted in a panel or enclosure?
A: The meter is designed for panel mounting with a cut-out size of 45 × 25.8 mm. Its compact body (47.7 × 28.7 × 17.5 mm) makes it easy to integrate into dashboards, battery boxes, or DIY electrical enclosures.
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.