1. Ynlieding
This manual provides detailed instructions for the installation, operation, and maintenance of your MAIMEIMI 85mm GPS Speedometer. Designed for a wide range of applications including cars, tractors, trucks, boats, and marine vessels, this speedometer features a clear TFT screen, IP67 waterproof rating, and a wide 9-32VDC working voltage range. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Package Ynhâld
Kontrolearje by it iepenjen fan jo pakket oft alle folgjende items ynbegrepen binne:
- 1 x GPS Speedometer (85mm / 3-3/8")
- 1 x GPS Antenna (3-meter cable length)
- 1 x Instruction Manual

Image: Contents of the MAIMEIMI GPS Speedometer package.
3. Produktfunksjes
- TFT Screen Display: Provides clear visibility of speed, odometer, trip meter, battery voltage, en koers oer grûn (COG).
- Wide Voltage Berik: Operates on 9-32VDC, suitable for various vehicle types.
- Waterproof & Anti-fogging: IP67 rated for water and fog resistance, ensuring reliable performance in challenging environments.
- Multiple Unit Switching: Easily switch between kilometers per hour (km/h), miles per hour (mph), and knots (rounded to one decimal).
- GPS-sinjaalakwisysje: Initial signal acquisition takes approximately 30 seconds, with faster connections under clear skies.
- Odometer & Trip Meter: Odometer (0-999999km) is adjustable via the back button. Trip meter (0-999.9km) resets when power is off.
- Oriïntaasjewizer: Displays Course Over Ground (COG) for directional awareness.

Image: Detailed display information of the GPS Speedometer.

Image: The speedometer undergoing a waterproof test.
4. Opset en ynstallaasje
Follow these steps for proper installation of your GPS Speedometer:
- Tariede it montagegat: Open an 85mm (3 3/8") diameter hole in your panel. Ensure there is a 55mm (2 3/16") depth clearance behind the panel for the gauge body.
- Fier de meter yn: Carefully place the speedometer into the prepared hole.
- Befestigje de meter: Use the provided mounting ring to screw down and secure the gauge firmly in place.
- Ferbine wiring:
- Connect the Black wire to Ground (-).
- Connect the Red wire to 9-30VDC power supply.
- GPS-antenne ferbine: Plug the GPS antenna into the designated port on the back of the speedometer. The GPS antenna can be optionally mounted using 3M double-sided tape.

Image: Front and back dimensions of the GPS Speedometer.

Image: Basic wiring diagram for the speedometer.

Image: Step-by-step installation guide for the gauge.
5. Bedriuwsinstruksjes
Once installed and powered, the speedometer will begin searching for a GPS signal. After acquiring a signal, it will display speed and other data.
- Unit Switching: To change the speed unit (km/h, mph, or knots), press the button located on the back of the speedometer. The unit will cycle through the options and save automatically.
- Odometer Adjustment: The odometer value can be adjusted using the button on the back.
- Trip Meter: The trip meter automatically resets to zero when the power is turned off.

Image: Display showing selectable speed units.
Video: Demonstration of the 85mm GPS Speedometer, including unit switching and waterproof features.
6. Underhâld
To ensure the longevity and optimal performance of your GPS Speedometer, follow these general maintenance guidelines:
- Regularly clean the screen and bezel with a soft, damp doek. Avoid abrasive cleaners.
- Soargje derfoar dat alle bedradingferbiningen feilich en frij fan korrosje bliuwe.
- Periodically check the GPS antenna for any damage or obstruction to maintain signal integrity.
- Wylst it apparaat IP67 wetterdicht is, foarkom langduorjende ûnderdompeling of hege-druk wetterstralen.
7. Probleemoplossing
If you encounter any issues with your GPS Speedometer, consider the following common solutions:
- Gjin GPS-sinjaal: Soargje derfoar dat de GPS-antenne in dúdlike view of the sky. Obstructions can block the signal. Allow up to 30 seconds for initial signal acquisition.
- Incorrect Speed Reading: Verify that the correct unit (km/h, mph, knots) is selected. If the issue persists, ensure the GPS antenna is securely connected.
- Display wurket net: Check all power connections to ensure they are secure and receiving the correct voltagE (9-32VDC).
- Knoppen reagearje net: Ensure the unit is clean and free from debris around the buttons.
As de problemen oanhâlde nei it besykjen fan dizze stappen, nim dan kontakt op mei klanttsjinst foar fierdere assistinsje.
8. Spesifikaasjes
| Spesifikaasje | Detail |
|---|---|
| Produkt Ofmjittings | 3.82 x 3.78 x 2.2 inch; 10.88 wy |
| Wurk Voltage | 9-32VDC |
| Waterproof Rating | IP67 |
| Materiaal | Stainless Steel, Plastic, Anti-Fogging Glass |
| Faasjeberik | 0-600 km / h |
| Kilometertellerberik | 0-999999 km (oanpasber) |
| Trip Meter Range | 0-999.9 km (resets on power off) |
| Fabrikant | MAIMEIMI |
9. Garânsje en stipe
For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official MAIMEIMI webside. Bewarje jo bewiis fan oankeap foar alle garânsjeclaims.