High-performance digital display monitors, multi-function OBDII gauge panels, and precision sensor kits.
Established in 1986, Ruian DongOu Automobile Meter Factory is a professional enterprise dedicated to the research, development, and high-precision production of automotive instrumentation systems. With nearly four decades of expertise, our plant has established a mature technical ecosystem, advanced digital design methodologies, and strict quality control operations. Over the years, we have built a stellar reputation as a leading manufacturer in the performance instrumentation industry globally.
Our product matrix covers two core proprietary brands, strategically configured for distinct user demands: First, SincoTech, our high-end dashboard and racing system line jointly developed in partnership with an Australian engineering company. This brand specializes in professional racing dash panels utilizing high-density OLED and LCD display layouts, providing ultra-precise CAN-bus telemetry for extreme racing conditions. Second, GragonGauge, our specialized aftermarket modification line, which spans 52mm (2 inch), 60mm (2.36 inch), and 85mm (3.75 inch) tachometers, boost gauges, vacuum gauges, water temperature gauges, oil temperature/pressure gauges, voltmeters, air-fuel ratio meters, and exhaust gas temperature (EGT) indicators.
Years of Engineering Expertise
OEM/ODM Custom Models
Global Distribution Countries
EMI/EMC Calibrated Units
How our automated production lines and comprehensive quality systems guarantee consistent high-performance outputs.
Equipped with high-speed surface mount technology (SMT) lines to place microprocessors and driver ICs on multi-layer PCBs with zero alignment failure, ensuring signal integrity in harsh automotive environments.
Every sensor kit, boost sender, and tachometer circuit undergoes automated temperature and pressure cycling to align and calibrate measurement ranges. This process ensures drift-free operation from -40°C to +85°C.
By producing components—such as injection-molded gauge pods, stepper motors, backlights, and glass lenses—in-house, we control costs and protect raw material supplies from market volatility.
DongOu Factory utilizes a highly robust raw material tracking framework, ensuring that each batch of components meets international automotive standards. Our production plant features specialized dust-free cleanrooms specifically for assembling high-end LCD and OLED screens. This prevents microscopic particulate contamination, which is critical to maintaining perfect visual clarity on premium motorsport systems like the SincoTech DO908 and DO921 series.
Furthermore, our engineering teams conduct strict quality testing for EMI (Electromagnetic Interference) and vibration resistance. This guarantees that our custom instrument clusters maintain stable performance and continuous data transmission, even when subjected to the extreme chassis vibrations of professional rally racing and high-performance drifting.
Pioneering the transition from analog mechanical gauges to high-definition, multi-protocol digital dashboards.
At DongOu, our design path addresses the growing demand for dense data presentation without cluttering the driver's field of view. By transitioning from individual stepper motor dials to OLED digital multi-gauge displays and wide-screen LCD telemetry systems, we enable drivers to monitor up to 18 critical parameters in real time through a single screen.
Our dashboards utilize advanced Bluetooth and high-speed OBDII protocols to read sensor outputs directly from the vehicle's engine control unit (ECU). This eliminates complex wiring setups and drastically reduces installation times for both racing teams and custom car builders.
Our upcoming product generation focuses heavily on CAN-bus protocol integration. This expansion allows our dashboards to interface seamlessly with aftermarket standalone ECUs, capturing high-resolution telemetry and displaying key status indicators with near-zero latency.
| Dashboard Series | Display Type | Max Parameters | Connectivity | Waterproofing |
|---|---|---|---|---|
| SincoTech DO907 | High-Definition OLED | 10 in 1 Display | Sensor Hub / Direct Wiring | Dust-Protected IP54 |
| SincoTech DO908 | Backlit LCD Matrix | 9 in 1 Display | Sensor Hub Kit | IP65 Waterproofing |
| SincoTech DO921 | 7-Color LCD | Multi-Parameter | OBDII + Bluetooth Link | Standard Splash-Proof |
| GragonGauge series | Dual Display LED/TFT | Dual Metric Dials | Direct Sensor / OBDII | IP54 Dust Shield |
Custom engineering tailored for motorsport divisions, specialty automotive builders, and global fleet configurations.
High-contrast, anti-glare display panels with programmable LED shift lights. Engineered to provide racing teams with instant access to vital engine metrics, such as exhaust gas temperatures (EGT), oil pressure, and lap times.
Custom instrument dials in 52mm and 60mm configurations. Designed for aftermarket performance cars, drift machines, and custom off-road builds, offering multiple backlight color options for seamless dashboard integration.
Robust digital instrument monitors for commercial transport, agriculture, and industrial machinery. These units provide reliable telemetry for engine temperatures, voltage checks, and fuel levels over long operational periods.
To serve automotive markets worldwide, DongOu complies with international regulatory and quality frameworks. Our production workflows align with ISO9001 quality management systems, ensuring traceabilty for all critical dashboard components, from initial design drafts to final packaging.
Our products comply with CE, FCC, and RoHS standards, ensuring they meet rigorous safety, electromagnetic emission limits, and environmental protection guidelines. This compliance makes our gauges and displays ready for distribution in Europe, North America, and Australia without regulatory obstacles.
We provide full documentation, calibration certificates, and connection diagrams in multiple languages to streamline custom clearance and simplify regional field installations for wholesale distributors and fleet managers alike.
How we support design requests, custom branding, and bulk orders for global partners.
Submit your specifications, including display dimensions, data inputs (CAN-bus, OBDII, or direct sensors), and order volumes, to receive a detailed cost analysis within 24 hours.
For custom engineering and cosmetic changes, we provide initial 3D designs and functional board samples within 15–20 working days for evaluation.
Once samples are approved, our automated assembly lines initiate the production run. We implement intermediate inspection stages to ensure consistent output quality.
Finished goods undergo final inspection and are packed securely for air or sea transit. We provide full customs documentation to streamline imports.
Answers to key engineering, integration, and ordering questions from global automotive buyers.
SincoTech focuses on professional racing dashboards with large multi-parameter OLED or LCD displays. These systems connect to the vehicle via an OBDII adapter or a sensor distribution hub, reading multiple metrics simultaneously. GragonGauge offers standalone analog and digital gauges (such as 52mm and 60mm gauges) that allow drivers to monitor individual parameters on their dashboard.
For vehicles without OBDII diagnostics, we provide dedicated sensor hub kits (included with models like the DO907 and DO908). These hubs collect analog inputs from oil temperature, boost, and water temperature sensors, convert them to digital signals, and send the data directly to the dashboard display.
We provide extensive design services, including custom branding and logo placement on dials, adjustable backlighting (7-color options), modified scale limits, custom sensor calibrations, and customized housing dimensions to match your project specifications.
The MOQ for custom branding and logo placement depends on the gauge series and the extent of the modifications. Standard gauge custom runs typically require 100 to 500 units, while specialized racing panels have different guidelines. Please contact our sales team to discuss your project requirements.
Our automotive instruments are constructed with durable ABS housings, scratch-resistant acrylic or glass lenses, and robust stepper motors. They are engineered to function reliably across a temperature range of -40°C to +85°C and are thoroughly tested to withstand severe racing vibrations.
Explore our full line of automotive instruments, tachometers, and custom monitoring devices.
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