1. Introduction
Thank you for choosing the AD 6in1 Multi-functional Digital Gauge. This advanced instrument is designed to provide comprehensive monitoring for your boat, car, or motorcycle, integrating a GPS speedometer, tachometer, oil pressure gauge, fuel level gauge, water temperature gauge, and voltmeter into a single 85mm unit. This manual will guide you through the installation, operation, and maintenance of your new digital gauge.
Front view of the AD 6in1 Multi-functional Digital Gauge with a white silver bezel, displaying various metrics like fuel level, temperature, voltage, GPS speed (MPH), trip, odometer, RPM, and engine hours.
Product demonstration video showing the gauge powering on, displaying various metrics, and cycling through unit options (km/h, MPH, kont, Celsius, Fahrenheit, Bar, Psi).
2. Safety Information
- Always disconnect the vehicle's battery before performing any electrical work.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- Do not attempt to modify the gauge or its components, as this may void the warranty and cause damage.
- Consult a professional if you are unsure about any installation steps.
- The gauge is designed for 9-32V DC systems. Do not connect to systems outside this voltage range.
3. Package Contents
Please check the package for the following items:
- 1 x AD 6in1 Multi-functional Digital Gauge (85mm)
- 1 x GPS Antenna
- 1 x Wiring Harness
- 1 x User Manual (this document)
Image showing the contents of the product package: one 85mm 6-in-1 digital gauge, one GPS antenna, and the necessary wiring harness.
4. Specifications
4.1. General Features
- Functions: GPS Speedometer, Tachometer, Oil Pressure, Water Temperature, Voltmeter, Fuel Level, Engine Hours, Trip Meter, Odometer
- Operating Voltage: 9-32V DC
- Power Consumption: < 120mA
- Operating Temperature: -20°C to 70°C (-4°F to 158°F)
- Storage Temperature: -30°C to 80°C (-22°F to 176°F)
- Degree of Protection: IP67 (Waterproof and Dustproof)
- Material: Plastic Shell
- Item Weight: 900g
4.2. Display Ranges
An annotated image detailing the display ranges for each function of the gauge: Fuel level (0-100%), Oil pressure (0-10 bar or 0-145 psi), Voltmeter (9-32V), GPS Speed Over Ground (0-600 km/h), Odometer (0-999999 km/miles/nmi), Trip meter (0-9999 km/miles/nmi), Tachometer (0-9999 RPM with Speed Ratio 1.0-360.0), Water temperature (40-120°C or 100-250°F), and Engine hours (0-99999.9H).
| Parameter | Display Range | Sensor Signal (if applicable) |
|---|---|---|
| GPS SOG (Speed Over Ground) | 0 ~ 600 km/h | GPS |
| Engine Speed (RPM) | 0 ~ 9999 RPM | RPM Signal (adjustable speed ratio: 1.0 ~ 360.0) |
| Engine Oil Pressure | 0 ~ 10 bar (0 ~ 145 psi) | 10 ~ 184 ohm |
| Engine Temperature | 40 ~ 120°C (100 ~ 250°F) | 301 ~ 22 ohm |
| Battery Voltage | 9 ~ 32V | Direct input |
| Fuel Level | 0 ~ 100% | 0 ~ 190 ohm / 240 ~ 30 ohm (selectable) |
| Total Engine Hours | 0.0 ~ 99999.9 H | Internal calculation |
| Odometer (ODO) | 0 ~ 999999 km/miles/nmi | GPS |
| Trip Meter (TRIP) | 0 ~ 9999 km/miles/nmi | GPS |
5. Installation
5.1. Mounting the Gauge
- Ensure the mounting surface is flat and clean.
- Cut a circular hole with a diameter of 85mm (3.35 inches) in the dashboard or mounting panel.
- Insert the gauge into the hole.
- Secure the gauge from the back using the provided mounting ring and nuts.
Diagram illustrating the physical dimensions of the gauge. The front diameter is 97mm (3.81 inches), the back depth is 56mm (2.2 inches), and the required mounting hole diameter is 85mm (3.35 inches).
5.2. Wiring Connections
Refer to the wiring diagram below for proper connections. Ensure all connections are tight and insulated.
Detailed wiring diagram illustrating how to connect the AD 6in1 Multi-functional Digital Gauge. It shows color-coded wires for Black (Ground-), Red (9-32VDC), Blue (RPM Signal), Yellow (Temperature Signal), White (Oil Pressure Signal), and Other Blue (Fuel Level Signal). The diagram also indicates the connection point for the GPS antenna.
- Black Wire: Connect to Ground (-)
- Red Wire: Connect to 9-32VDC power supply
- Blue Wire: Connect to RPM Signal (Tachometer input)
- Yellow Wire: Connect to Temperature Signal
- White Wire: Connect to Oil Pressure Signal
- Other Blue Wire: Connect to Fuel Level Signal
5.3. GPS Antenna Connection
Connect the GPS antenna to the designated port on the back of the gauge. Mount the GPS antenna in a location with a clear view of the sky for optimal signal reception. Avoid placing it under metal objects or near other electronic devices that may interfere with the signal.
6. Operation
6.1. Powering On/Off
The gauge will power on automatically when 9-32VDC is supplied to the red wire and power off when the power supply is disconnected.
6.2. Understanding the Display
The gauge features a clear LCD display showing multiple parameters simultaneously. Refer to the diagram below for an overview of the display elements.
A diagram with labels pointing to each element on the gauge's display, identifying Fuel level, Oil pressure, Water temperature, Voltmeter, GPS speedometer, Trip meter, Odometer (ODO), Tachometer, Engine hours, and RPM rate.
6.3. Changing Display Units
The gauge allows you to customize the units for temperature, pressure, and speed. Use the buttons on the back of the gauge (or as indicated in the product images) to cycle through the available options:
- Temperature: °F (Fahrenheit) / °C (Celsius)
- Pressure: Psi / Bar
- Speed: km/h (kilometers per hour) / MPH (miles per hour) / kont (knots)
Display showing the customizable units for temperature, pressure, and speed.
6.4. Adjusting Speed Ratio (for Tachometer)
The speed ratio for the tachometer is adjustable from 1.0 to 360.0. This setting is crucial for accurate RPM readings and must be configured to match your engine's specifications. Typically, this adjustment is made via a button or a series of button presses on the back of the unit. Consult the specific instructions that came with your unit or contact support for detailed steps on how to enter the calibration mode and set the speed ratio.
7. Maintenance
- Cleaning: Use a soft, damp cloth to clean the display and housing. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check all wiring connections for tightness and signs of wear or corrosion.
- Environmental Protection: Although the gauge is IP67 rated, prolonged exposure to extreme conditions (e.g., direct high-pressure water jets) should be avoided.
8. Troubleshooting
The gauge is equipped with an alarm system to alert you to potential issues. Here are common alarm messages and their meanings:
| Alarm Message | Possible Cause | Solution |
|---|---|---|
| Oil pressure sensor off, low pressure | Faulty oil pressure sensor or low engine oil pressure. | Check oil level and oil pressure sensor connection/function. |
| Temperature sensor off, high temperature | Faulty temperature sensor or engine overheating. | Check coolant level, engine temperature, and temperature sensor connection/function. |
| Low voltage | Vehicle battery voltage is below the safe operating threshold. | Check battery charge and charging system. |
| Low fuel level | Fuel tank is low or fuel level sensor is faulty. | Refuel or check fuel level sensor connection/function. |
| No GPS signal | GPS antenna not connected, obstructed, or faulty. | Ensure GPS antenna is connected and has a clear view of the sky. |
9. User Tips
- RPM Configuration: For accurate tachometer readings, it is essential to correctly configure the speed ratio (pulse per revolution) to match your engine. This setting is usually accessed through a menu system via the buttons on the back of the gauge. If you are unsure, consult your engine's manual for the correct pulse per revolution value.
- Fuel Level Sensor Compatibility: The gauge supports both 0-190 ohm and 240-30 ohm fuel level sensors. Ensure you select the correct type during setup for accurate fuel readings.
- GPS Signal: For the most reliable speed and distance readings, ensure your GPS antenna is mounted in an unobstructed location, away from metal interference.
10. Warranty and Support
This product comes with a standard manufacturer's warranty against defects in materials and workmanship. Please retain your proof of purchase for warranty claims. For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the manufacturer's customer service department.