Explore our core selection of high-precision digital dashboards, multi-function sensor kits, and automotive gauges engineered for racing vehicles worldwide.
Established in 1986, Ruian DongOu Automobile Meter Factory has emerged as a premier professional enterprise globally recognized for pioneering the research, development, and high-performance production of automotive instrumentation systems. Over nearly four decades, we have continuously advanced our core technology capabilities to build a robust, comprehensive ecosystem capable of outputting ultra-precise data monitors for demanding racing and custom tuning scenarios.
Our operation is underpinned by advanced automated calibration machines, precision surface mount technology (SMT) lines, and a high-caliber technical engineering R&D team dedicated to push the boundaries of automotive diagnostic displays.
SincoTech: A high-end race-grade instrument panel brand jointly developed in collaboration with an Australian technology firm. This elite line focuses on professional motorsport solutions, offering waterproof ratings up to IP67, low-latency Bluetooth modules, and integrated sensor matrices engineered to survive severe G-force tracks.
GragonGauge: A specialized modification brand featuring 52mm (2 inches), 60mm (2.36 inches), and 85mm (3.75 inches) gauges. Product lines include high-response stepper-motor tachometers, boost, vacuum, oil/water temp, oil pressure, EGT, AFR, and exhaust gauges.
Addressing the critical supply-chain challenges, technical parameters, and system requirements for motorsports distributors, OEMs, and industrial fleets.
Global wholesale buyers require flexible white-labeling solutions. We support custom logo printing, custom startup screens on Bluetooth dashboards, specialized measurement units (PSI vs. Bar, Celsius vs. Fahrenheit), and tailormade mounting brackets to fit bespoke project dashboards.
Harsh motorsport tracks demand high vibration resistance and wide operational temperature zones. Our instrumentation systems undergo continuous thermal cycle testing (-40°C to +85°C) and are built with rugged aluminum or UV-stabilized ABS casings to prevent cracking and display fade.
Modern tuning demands high compatibility. Our SincoTech DO921 and DO904 models integrate both standalone sensor systems and OBDII / CAN bus interfaces. This allows teams to extract clean RPM, boost, water temp, and voltage readings seamlessly from stock and race ECUs.
Data-driven validation of Ruian DongOu's global production capacity and technical authority.
Strategic hardware and display deployments configured for racing groups, global aftermarket distributors, and commercial fleet applications.
For high-intensity circuit, rally, and drag racing. Solutions include our multi-function LCD racing dash panels with high-visibility sequential shift lights. With real-time sensor processing and zero lag, racers can monitor up to 18 critical parameters including EGT, oil temp, and air-fuel ratios under extreme cornering forces.
Catering to drift, street, and show car projects. We provide 52mm and 60mm analog-digital hybrid gauges (GragonGauge series) offering 7-color selectable backlights, peak value recall, and warning buzzers. These units easily cluster in A-pillar pods or dashboard housings for custom aesthetic appeal.
Engineered for high-vibration off-road buggies, commercial haulers, and marine craft. Our IP67 waterproof SincoTech DO908 dashboard features tough, sealed housings, high-brightness displays visible under direct sunlight, and robust wiring looms that resist oil, heat, and moisture damage.
Ruian DongOu Automobile Meter Factory is actively executing a tech-integration roadmap to align with the transition towards electric vehicles (EV) and intelligent connected cockpits. Our engineering labs are focused on key structural milestones:
A behind-the-scenes view of our development labs, assembly workshops, and product testing units.









The core configurations selected by our leading global automotive distributors.
Stay ahead of market curves with our latest smart telemetry and multifunction systems.
Covers 18 kinds of important parameter data. Integrated alarm indicators and sensor connection kit. Model: SincoTech DO916.
High-brightness, high-definition OLED display panel with auto-brightness levels and external sensor matrix. Model: DO907.
Features standard OBDII connection, high-speed Bluetooth link, and multi-parameter live graphing capability. Model: DO903.
No Matter Where You Are, Make Care Without Distance
Over the past four decades, Ruian DongOu Automobile Meter Factory has focused on breaking the historical trend of Chinese manufacturers lacking high-end presence in the performance automotive market. Today, our distribution network spans Australia, North America, the European Union, South America, and Southeast Asia.
By controlling both physical R&D labs and tooling facilities, we provide reliable lead times for wholesale operations, batch quality checks on high-speed SMT assembly, and immediate engineering support. Our dual-brand approach with SincoTech and GragonGauge ensures that whether your firm serves professional racing teams or street car customizers, you have direct factory backup.
With stable product performance, excellent user experience, and comprehensive after-sales service, our company has won widespread recognition and praise from domestic and international customers, accumulating an outstanding brand reputation in the global automotive instrumentation market.
Ensuring seamless legal import, local vehicle integration, and product safety compliance across international regions.
All wireless models, including our Bluetooth dashboards and sensor boxes (DO904, DO922), strictly comply with CE and FCC electronic emissions standards to avoid interference with critical automotive safety systems and ECUs.
We source premium lead-free solder components and raw materials to meet RoHS requirements in Europe. This ensures eco-friendly manufacturing processes and simplifies importation processes for custom tuning distributors.
Different markets prefer specific metric configurations. Our digital race dashboards support direct switching between Metric and Imperial readouts (e.g., kPa/PSI for pressure, Celsius/Fahrenheit for temperature, and KMH/MPH for speed).
Addressing primary technical queries and bulk procurement considerations for B2B partners and professional mechanics.
Browse our catalog of custom water-temperature, wideband air-fuel ratio, OBDII Bluetooth dashboards, and waterproof multi-function monitors.