Established in 1986, Ruian DongOu Automobile Meter Factory is a professional enterprise dedicated to the research, development, and production of automotive instrumentation systems. Since its inception, the company has cultivated deep expertise in the industry for many years, building a mature and complete technical system and possessing stable and efficient production capabilities, establishing a strong reputation in the field of automotive instrumentation.
We run a comprehensive and diverse product portfolio under two core brands, each targeting distinct segment demands with clear engineering positioning:
The global automotive aftermarket and tuning industry is undergoing a digital revolution. Traditional analog sensor arrays are rapidly being replaced by unified OBD2 digital display systems. OBD2 (On-Board Diagnostics II) dashboards connect directly to the vehicle’s ECU via the CAN Bus protocol (Controller Area Network), aggregating vital telemetry points in real-time. This structural transition eliminates complex engine bay wiring, reduces weight, and minimizes sensor installation failures.
Today, fleet managers, tuning garages, off-road developers, and racing teams rely on multi-functional OBD2 screens. The growth is fueled by the need for diagnostic efficiency. Modern OBD2 dashboards read and clear Diagnostic Trouble Codes (DTCs), capture engine load patterns, and monitor heat distribution, providing a comprehensive safety interface for drivers.
Semantic Integration Insight:
Our modern OBD2 dashboards support all major OBD-II diagnostic protocols including ISO 15765-4 (CAN), ISO 9141-2, KWP2000, and SAE J1979 protocols, assuring 99.8% compatibility with global vehicle platforms manufactured post-1996.
Equipped with high-performance 32-bit ARM processors, our dashboards decode ECU messages within milliseconds, preventing needle lag during high-RPM applications.
From 9-in-1 to 18-in-1 parameter dashboards, monitor RPM, water temp, oil temp, pressure, boost, EGT, air/fuel ratios, and speed simultaneously.
Integrated multi-color LED shift-lights and customizable acoustic thresholds signal early warnings to drivers before mechanical damage occurs.
With over three decades of manufacturing history, our facility leverages precision calibration machinery, surface-mount technology (SMT) lines, and automated visual inspection systems to maintain zero-defect standards for every batch shipped globally.
Ruian DongOu Automobile Meter Factory is located in Ruian, Wenzhou—the automotive component capital of China. This industrial positioning provides our factory with an integrated ecosystem of raw material supplies, processing partners, and specialized electronic engineers.
Our manufacturing framework utilizes strict vertical integration. By handling PCB layout design, plastic injection molding, calibration, and final enclosure assembly in-house, we eliminate intermediate markups. B2B buyers directly benefit from lower per-unit costs and highly agile manufacturing. We support customization of shell shapes, backlight ranges, display protocols, and private brand logos at reasonable minimum order quantities (MOQs).
Furthermore, we utilize rigorous testing procedures. Every OBD2 dashboard goes through thermal shock testing (-30°C to 80°C), vibration frequency simulation, and electrostatic discharge (ESD) testing to ensure long-term stability in harsh motorsports and commercial vehicle environments.
Our digital dashboards and telemetry instrumentation are engineered for diverse operating environments globally:
Developed with Australian race teams, SincoTech dashboards provide waterproof, dustproof systems for open-cabin cars and professional circuit racing. Features speed thresholds, RPM progress indicators, and lap timing systems.
GragonGauge supplies customized individual instrument configurations for off-roaders and custom car builders. Drivers can monitor critical parameters like EGT, engine oil pressure, boost levels, and air-fuel ratio simultaneously.
Our dashboards support both 12V and 24V architectures. This compatibility allows fleet operators to use our multi-parameter systems on trucks, buses, and heavy equipment, reading real-time diagnostics directly from J1939-compatible CAN networks.
Below is the core design standard applied across our SincoTech and GragonGauge digital OBD2 dashboard product lines:
| Specification Parameter | OLED Racing Series (SincoTech) | Tuning Digital / Analog Series (GragonGauge) | B2B ODM Customized Options |
|---|---|---|---|
| Screen Type | High-contrast Transmissive OLED | 7-Color Segmented LCD / Stepper Motor | IPS Touch Panel / Custom LCD Layout |
| Operating Voltage | 9V - 16V DC (Optional 24V modules) | 12V DC (Universal fit) | Custom wide-voltage (9V - 36V DC) |
| Data Interface | OBD-II Bluetooth Receiver / Hardwired sensors | Analog sensors / direct engine ECU taps | RS232 / TTL / CAN Bus Direct Interfacing |
| Waterproof Grade | IP65 (Splash-proof panel) | IP54 (Interior cabin mount) | Up to IP67 fully sealed units |
| Standard Dimensions | Multi-inch panel displays | 52mm (2"), 60mm (2.36"), 85mm (3.75") | Custom enclosure molding and framing |
| Housing Materials | Anodized Aluminum / High-Grade ABS | Reinforced Composite Thermoplastic | Carbon Fiber Faceplates / Custom Branding |
Here are direct technical answers regarding our production processes, custom requests, and wholesale capabilities:
For standard wholesale catalog stock, the minimum order quantity starts as low as 10 units. For custom branding, laser etching of logos, or custom packaging design, the minimum order quantity is typically 100 to 200 units per model. Custom casing design or custom PCB solutions require mold development and are evaluated case-by-case.
Yes. Although our standard consumer dashboards target light vehicles (using standard OBD2 ISO 15765 protocols), we can customize our digital dashboards to support SAE J1939 protocols for B2B fleet contracts, buses, and commercial heavy vehicle integrations.
We maintain an extensive database of global ECU profiles. Our OBD2 interfaces are tested using simulation devices that mimic ISO, KWP, and CAN bus outputs across various car manufacturers (European, Asian, American, and domestic Chinese brands). Our chips feature auto-negotiation firmware, which automatically matches the vehicle’s specific OBD-II communication protocol.
Our production plant follows standard ISO 9001 internal quality control procedures. Our core products are manufactured in compliance with CE, RoHS, and FCC regulations to ensure seamless distribution in strict European and North American aftermarket segments.
Standard catalog orders are dispatched within 7–15 working days. Large wholesale orders (500+ units) or custom OEM/ODM packaging contracts typically have a lead time of 25–35 days from deposit confirmation and sample approval.
Dongou