1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your ELING 24V 16-32V 52mm Voltmeter Voltage Gauge. Designed for various vehicles including cars, boats, trucks, and RVs, this gauge offers reliable voltage monitoring with a clear red backlight. Please read this manual thoroughly before installation and use to ensure proper function and safety.
What's in the Box:
- 1 x ELING 52mm Voltmeter Voltage Gauge
- 1 x Wiring Harness
- 1 x Installation Manual
- Mounting Hardware (nuts and bracket)
2. Product Overview and Features
The ELING Voltmeter Voltage Gauge is engineered for precision and durability, providing essential voltage readings for your vehicle's electrical system. Its compact 52mm (2-inch) design and red backlight ensure visibility in various lighting conditions.

Front view of the ELING 24V 16-32V 52mm Voltmeter Voltage Gauge.
Key Features:
- Installation Dimension: 52mm (2")
- Indicating Range: 16-32V
- Working Voltage: 24V
- Backlight: Red
- 100% waterproof and anti-fogging protection

The voltmeter gauge displaying a voltage reading.

Side view of the voltmeter, showing its depth and mounting bracket.

Rear view of the voltmeter, highlighting the electrical terminals for connection.
Official product video demonstrating the ELING 52mm Voltmeter, showcasing its design, backlight, and suitability for various vehicles.
3. Installation
Follow these steps for proper installation of your voltmeter gauge:
- Prepare the Mounting Hole: Before installation, open a hole with a diameter of 52-53mm (2 inches) in the panel. Ensure there is a space of at least 70mm (2-3/4 inches) behind the panel for the gauge body and wiring.
- Insert the Gauge: Carefully place the voltmeter gauge into the prepared hole.
- Secure the Gauge: Use the provided M4 nuts and C-type bracket to firmly seal and secure the gauge to the panel.

Diagram from the owner's manual illustrating the installation process and required dimensions for the mounting hole.
4. Wiring and Connection
Proper wiring is crucial for the correct function of the voltmeter. Refer to the diagram below and the following instructions:
- Red Wire: Connect to +16-32VDC (positive power supply).
- Orange Wire: Connect to Red Backlight (+) (positive for backlight).
- Blue Wire: Connect to Ground (-) (negative power supply).
Note: If your product includes a volt gauge and hour meter, and there is no black wire, please refer to the specific wiring instructions provided with your product. Generally, black wires are not included in volt gauges and hour meters.

Wiring diagram from the owner's manual, detailing the connections for power and backlight.
Video demonstrating the connection process and initial function of the voltmeter, showing the needle movement upon power-up.
5. Operating Instructions
Once correctly installed and wired, the ELING Voltmeter operates automatically:
- Power On: After the voltmeter is powered on, it will immediately display the real-time voltage of the connected electrical system.
- Voltage Range: The gauge is designed to display voltage within the 16-32V range. If the voltage is too high or too low outside this range, it may not be displayed accurately or at all.
- Backlight: The red backlight will illuminate when the orange wire is connected to a positive power source, enhancing visibility in low-light conditions.

The voltmeter in active operation, indicating a stable voltage level.
6. Specifications
Detailed technical specifications for the ELING Voltmeter Voltage Gauge:
| Specification | Value |
|---|---|
| Brand | ELING |
| Model Number | 810-00065 |
| Material | Plastic |
| Installation Dimension | 52mm (2 inches) |
| Indicating Range | 16-32V |
| Working Voltage | 24V |
| Operating Current | ≤60mA |
| Backlight Color | Red |
| Waterproof Rating | 100% waterproof |
| Anti-fogging Protection | Yes |
| Item Dimensions (L x W x H) | 2.05 x 2.05 x 2.76 inches |
| Item Weight | 3.98 Ounces |
| Operating Temperature | -30°C to +75°C |
| Storage Temperature | -40°C to +85°C |
7. Maintenance
To ensure the longevity and accurate performance of your ELING Voltmeter, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the gauge face with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the lens or housing.
- Inspection: Periodically check the wiring connections to ensure they are secure and free from corrosion. Inspect the gauge for any signs of physical damage.
- Environmental Protection: While the gauge is waterproof and anti-fogging, extreme environmental conditions can still affect its lifespan. Ensure it is installed in a location protected from direct, prolonged exposure to harsh elements if possible.
8. Troubleshooting
If you encounter issues with your voltmeter, consider the following common troubleshooting steps:
- No Display/No Power:
- Check all wiring connections (Red to positive, Blue to ground) for looseness or incorrect polarity.
- Verify the power source is providing voltage within the 16-32V operating range.
- Check for blown fuses in the power circuit.
- Inaccurate Readings:
- Ensure the gauge is receiving stable power and ground connections.
- Confirm the voltage of your system with a separate, calibrated multimeter to compare readings.
- Backlight Not Working:
- Check the connection of the Orange wire to the positive power source.
- Ensure the power source for the backlight is active.
If these steps do not resolve the issue, please contact ELING customer support for further assistance.
9. Warranty and Support
ELING products are manufactured to high-quality standards and are backed by a manufacturer's warranty. Please refer to the warranty information included with your purchase or visit the official ELING website for details regarding warranty coverage and terms.
For technical support, replacement parts, or any inquiries, please contact ELING customer service through the contact information provided on your product packaging or the official ELING website. Our dedicated support team is available to assist you.





