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9-in-1 Bluetooth LCD Race Dashboard Sensor Kit from China Suppliers - SincoTech DO904 with High-Visibility Display

Introducing our innovative product featuring a clear and bright high-visibility green backlit LCD display, designed for optimal readability in any lighting condition. This advanced device utilizes a reliable Sensor Bluetooth connection, ensuring seamless connectivity with your devices. Additionally, it provides essential alerts through audible notifications and indicator lights, incorporating a buzzer and eight vibrant LED indicators for user convenience. As a leading manufacturer and supplier in China, we take pride in delivering quality products directly from our factory to meet your needs
  • Band SincoTech
  • Model DO904
  • RPM Range 9000MAX
  • Display Digital
  • Screen Size 6.5 inches
  • Dimensions 186*102*22mm
  • Application Range All 12V Vehicles
  • Operating Voltage 9V-16V
  • Warranty Period 1 Year

📊 Parameter Range

Speed: 0–255 KM/H or MPH

RPM: 0–9000 RPM

Boost Range: -15~45 PSI or -1~3 BAR

Water Temperature: 0~150°C or 0~300°F

Oil Temperature: 0~150°C or 0~300°F

Oil Pressure: 0~150 PSI or 0~10 BAR

Voltage: 10~16V

Air-Fuel Ratio: 20:1~10:1

Exhaust Temperature: 0~1300°C or 0~2400°F

Clock: 24H


🖥️ Functions Display

1. RPM

2. Speed

3. Oil Pressure

4. Oil Temp.

5. Water Temp

6. Boost

7. Air Fuel Ratio

8. EGT

9. Voltage

10. Date

Rally Race Dash Panels 9 in 1 Gauge LCD Display Sensor Kit Multi-Function Race Dashboard Bluetooth Connection SincoTech DO904 (3)

🔔 Alarm Setting

RPM, SPEED — Warns via audible alerts and indicator lights, featuring a buzzer and 8 LED indicators.

💡 Brightness Adjustment Function

Users can choose to adjust the brightness manually or automatically according to the current environment, providing three brightness levels and an automatic sensitivity option.


🔌 Wire Harness Connector Including

1. Spare socket

2. Spare socket

3. Power

4. Boost sensor

5. Oil Pressure sensor

6. Air Fuel Ratio sensor

7. Oil Temp sensor

8. Water Temp sensor

9. Exhaust Gas Temp sensor

10. RPM (green wire) & Speed meter (red wire)

11. Spare socket


📋 Note

When the connection between the Monitor and the DPU is established, it will switch to the normal display:

1. RPM

2. Speed

3. Oil Pressure

4. Air Fuel Ratio

5. Turbo

6. Coolant Temp

7. Voltage

8. Time

9. Multi-purpose display section — Displays the date by default. The display can be changed by using the "↑" and "↓" button.


⚙️ Bottom of Display

1 – SET DATE

2 – SET TIME

3 – SET UNIT (change measurement unit for pressure)

4 – SET LED (turn the LED on and off)

5 – SET ALARM (adjust the speed limit alarm)

6 – SPEED CAL (calibrate the speed)


💬 Tips

1. We provide a one-year warranty (excluding damage caused by human factors). All warranty claims require proof of professional installation.

2. Manual measurement — please allow 1~3 mm error. Due to the difference between different displays, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture. Please understand, thank you!


Frequently Asked Questions (FAQ)
Q What parameters can the SincoTech DO904 race dashboard monitor?
The DO904 can monitor a wide range of parameters including RPM (0–9000), Speed (0–255 KM/H or MPH), Boost (-15~45 PSI), Water Temperature, Oil Temperature, Oil Pressure, Air-Fuel Ratio, Exhaust Gas Temperature, and Voltage — all displayed on a single LCD screen.
Q Does the DO904 support both metric and imperial units?
Yes. You can switch between metric and imperial units using the SET UNIT function at the bottom of the display. This allows you to select your preferred measurement unit for pressure, temperature, and speed.
Q How does the alarm system work on this gauge dashboard?
The alarm system monitors RPM and Speed values. When a set threshold is exceeded, it triggers both audible alerts (buzzer) and visual warnings through 8 built-in LED indicator lights, ensuring the driver is immediately notified of critical readings.
Q Can I adjust the screen brightness of the DO904 display?
Yes. The DO904 offers both manual and automatic brightness adjustment. Manual mode provides three brightness levels, while the automatic mode detects ambient light conditions and adjusts sensitivity accordingly — ideal for both daytime and night driving.
Q What sensors and connectors are included with the wire harness kit?
The wire harness kit includes connectors for Power, Boost Sensor, Oil Pressure Sensor, Air Fuel Ratio Sensor, Oil Temp Sensor, Water Temp Sensor, Exhaust Gas Temp Sensor, RPM (green wire), Speed Meter (red wire), and three spare sockets for future expansion.
Q What warranty is provided for the SincoTech DO904?
SincoTech offers a one-year warranty on the DO904, covering manufacturing defects. Please note that damage caused by human factors or improper installation is not covered. All warranty claims must be accompanied by proof of professional installation.