DO904 9-in-1 Multi-Function Car Gauge | LED Digital Tachometer with Full Sensor Kit

This DO904 9-in-1 multi-function car gauge brings together all the essential readings you need in one clear LCD display. With a full sensor kit, it turns your dashboard into a real-time command center for your vehicle's performance.

This gauge is built for drivers who want more than just a speedometer. It combines nine key functions into a single compact unit, so you can monitor your engine, turbo, voltage, and more without cluttering your dashboard. The bright LED display makes it easy to read at a glance, even during night drives.

Installation is straightforward thanks to the included full sensor kit. The system uses Bluetooth to connect the sensors to the display, giving you accurate, real-time data straight from your vehicle's ECU. It works with all 12V vehicles, making it a versatile upgrade for almost any car or truck.

Whether you are tuning your engine, keeping an eye on your turbo, or just want a cleaner dashboard setup, this gauge delivers the information you need in a simple, reliable package. The metal and ABS construction ensures it holds up to daily use, while the front placement keeps everything within your line of sight.

Key Features and Benefits

- 9-in-1 multi-function gauge that combines multiple readings into one display, reducing dashboard clutter and giving you all key data at a glance.

• Full sensor kit included that connects via Bluetooth to the display, making installation cleaner and more flexible than wired setups.

• Bright LED display with an ON/OFF switch that lets you control the RPM lights, so you can customize your dashboard look day or night.

• ABS, LCD, and metal construction that feels solid and durable, built to handle the vibrations and heat inside a vehicle cabin.

• Works with all 12V vehicles, so you can use it in cars, trucks, SUVs, and vans without compatibility worries.

• Front placement design that mounts easily on your dashboard, keeping the screen visible without blocking your view of the road.

Who Is This For

- Car enthusiasts who want to monitor engine performance metrics like RPM, boost, and voltage in real time.

• Tuner and hobbyist drivers who need accurate sensor data to fine-tune their vehicle's performance.

• Owners of older vehicles without built-in digital gauges who want a modern, multi-function upgrade.

• Anyone building a custom dashboard or rally car setup who needs a compact, all-in-one gauge solution.

Usage Scenario

Mark was getting ready for a weekend track day. He had just installed a new turbo kit on his sedan and needed to keep a close eye on boost levels and engine temperature. Instead of adding four separate gauges to his already busy dashboard, he mounted this 9-in-1 gauge on the front panel. With the sensor kit installed under the hood, he could see his RPM, turbo pressure, and coolant temp all on one screen. The LED lights flashed as he hit higher revs, giving him a clear visual cue without taking his eyes off the track. By the end of the day, he had dialed in his tune with confidence, knowing the data was accurate and easy to read.

Micro Comparison

Unlike OBD2-only gauges that read generic data from the vehicle's computer, this gauge uses dedicated sensors to capture real physical readings like turbo boost and oil pressure. This makes it a better choice for modified or tuned vehicles where factory sensors may not tell the full story. It also avoids the clutter of multiple single-function gauges by combining nine readings into one clean display.

Specifications

- Material: ABS + LCD + METAL

• Item Length: 186 mm

• Item Width: 22 mm

• Item Height: 102 mm

• Item Weight: 1.32 kg

• Placement on Vehicle: FRONT

• Special Features: 9-in-1 Multi-Function Gauge

• Power: 12V vehicle

• Connection: Bluetooth between sensor and display

Package Includes

- 1 x DO904 Multi-Function Gauge Display

• 1 x Full Sensor Kit

• 1 x Wiring Harness

• 1 x Mounting Bracket

• 1 x User Manual

Why You Will Love It

You will love having all your critical engine data in one place without the hassle of wiring multiple gauges. The bright LED display and customizable lights make your dashboard look clean and professional. It gives you the confidence to push your car harder, knowing you have accurate sensor data right in front of you.

Questions and Answers

Question: Is this gauge waterproof?

Answer: No, the DO904 model is not waterproof. Only the DO908 model has a life waterproof feature.

Question: What vehicles is this gauge compatible with?

Answer: It works with all 12V vehicles, including cars, trucks, SUVs, and vans.

Question: How does the gauge connect to the vehicle?

Answer: It uses sensors that connect to the vehicle's Data Processing Unit (DPU). The sensor data is then sent to the display via Bluetooth.

Question: Why doesn't this gauge use OBD2 directly?

Answer: OBD2 and the dedicated sensors read different types of data. The sensors in this kit provide readings like turbo boost and oil pressure that OBD2 may not capture accurately on modified vehicles.

Question: How bright is the LED display?

Answer: The LED lights have an ON and OFF switch. When set to ON, the four pairs of LED lights on the front of the dashboard light up as the RPM increases.

Question: Is the data from this gauge accurate?

Answer: The gauge acts as a data porter. The real and effective data comes from the vehicle's ECU, so accuracy depends on the data provided by the ECU.

Question: Does the product have a warranty?

Answer: Yes, it comes with a one-year warranty (excluding damage caused by the user). Proof of professional installation is required for any warranty claims.