1. Product Overview
The MAIMEIMI Multifunctional 6-in-1 Digital Gauge is a versatile instrument designed for automotive and marine applications. It integrates six essential functions into a single 85mm display: GPS Speedometer, Tachometer, Fuel Level Gauge, Oil Pressure Gauge, Water Temperature Gauge, and Battery Voltage Meter. This gauge provides real-time data to help you monitor your vehicle's or boat's performance and critical parameters, ensuring safe and efficient operation. Its waterproof design makes it suitable for various environments.
2. Specifications
| Feature | Specification |
|---|---|
| GPS Speedometer Range | 0-600 km/h, MPH, Knots |
| Tachometer Range | 0~9999 RPM |
| Engine Oil Pressure Range | 0~10 bar, 0~150 PSI |
| Engine Temperature Range | 40~120℃, 100~250℉ |
| Battery Voltage Range | 9~32V |
| Fuel Level Display | 0~100% |
| Total Engine Hours | 0.0-99999.9H |
| Item Weight | 350g |
| Item Dimensions (H x W x L) | 85mm x 85mm x 85mm |
| Material | Plastic |
| Special Features | Waterproof |
| Origin | Mainland China |
3. Setup and Installation
3.1 Package Contents
- MAIMEIMI 6-in-1 Digital Gauge
- GPS Antenna
- Wiring Harness
- Mounting Ring
- User Manual (this document)
3.2 Physical Installation
- Choose a suitable location on your dashboard or panel for the 85mm gauge.
- Cut an 85mm diameter hole in the chosen location.
- Insert the gauge into the hole.
- Secure the gauge using the provided mounting ring from the back of the panel.
3.3 Wiring Connections
Refer to the wiring diagram below for proper connection. Ensure all connections are secure and insulated to prevent short circuits.
- 1 Black: Ground (-)
- 2 Red: 9-32VDC (+)
- 3 Blue: RPM Signal
- 4 Yellow: Temperature Signal
- 5 White: Oil Pressure Signal
- 6 Brown: Fuel Level Signal
- 7 Green: External Keys (for unit changes and settings)
Connect the GPS antenna to the designated port on the back of the gauge.
4. Operating Instructions
4.1 Power On/Off
The gauge will power on automatically when connected to a 9-32VDC power source. It will power off when the power source is disconnected.
4.2 Display Functions
The gauge displays the following information:
- Fuel Level: Percentage of fuel remaining.
- Oil Pressure: Engine oil pressure in Bar or PSI.
- Voltmeter: Battery voltage in Volts.
- Water Temperature: Engine water temperature in ℃ or ℉.
- GPS Speedometer: Current speed in km/h, MPH, or Knots.
- Tripmeter: Distance traveled for the current trip.
- ODO: Total odometer reading (total distance traveled).
- Tachometer: Engine RPM.
- Engine Hours: Total engine operating hours.
- RPM Rate: Current RPM rate.
4.3 Changing Units
The units for speed, temperature, and pressure can be changed using the external keys (Green wire). Press the external key to cycle through available units:
- Speed: km/h, MPH, Kont (Nautical Miles per Hour)
- Temperature: ℃ (Celsius), ℉ (Fahrenheit)
- Pressure: Psi, Bar
4.4 Alarm Settings
The gauge features pre-set alarms for critical parameters:
- Oil Pressure: Alarm triggers if pressure drops below 0.8 Bar.
- Water Temperature: Alarm triggers if temperature exceeds 95℃.
- Voltage: Alarm triggers if voltage drops below 11.8V.
- Fuel Level: Alarm triggers if fuel level drops below 13%.
These alarms are designed to alert the user to potential issues, allowing for timely intervention.
4.5 Product Demonstration Video
5. Maintenance
- Cleaning: Use a soft, damp cloth to clean the display and exterior. Avoid abrasive cleaners or solvents.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Waterproof Feature: The gauge is designed to be waterproof. However, avoid prolonged submersion or high-pressure water jets directly on the unit.
6. Troubleshooting
- No Power: Check the 9-32VDC power connection (Red wire) and ground connection (Black wire). Ensure the power source is active.
- Inaccurate Readings:
- GPS Speedometer: Ensure the GPS antenna is properly connected and has a clear view of the sky. Allow time for GPS signal acquisition.
- Other Sensors: Verify that the respective sensor wires (RPM, Temperature, Oil Pressure, Fuel Level) are correctly connected to their senders and the gauge as per the wiring diagram (Figure 4).
- Display Issues: If the display is blank or flickering, check power connections and ensure the operating voltage is within the 9-32V range.
- Buttons Unresponsive: Ensure the external keys (Green wire) are properly connected and not damaged.
7. Warranty and Support
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For technical support or warranty claims, please contact your retailer or the manufacturer directly. Please have your purchase information and product model number available when seeking support.
