Explore our high-performance OBDII/Bluetooth gauges and multi-function LCD racing panels designed for professional motorsport tuning.
Established in 1986, Ruian DongOu Automobile Meter Factory is a pioneer and a leading professional enterprise dedicated to the research, development, and high-volume manufacture of automotive instrumentation systems. With over 38 years of dedicated focus, we have cultivated deep technical expertise, establishing a highly reliable and efficient production ecosystem.
Our operation is anchored in two strategically aligned brands:
How digital multi-parameter instrumentation displays are changing commercial and performance automotive projects around the world.
The SincoTech DO903 system has become the display of choice across European track-day organizations, Middle Eastern drifting clubs, and Australian off-road conversions. Our components conform to strict international requirements, allowing rapid integration into diverse regulatory markets.
Beyond personal performance tuning, the DO903 is utilized in commercial fleet tracking platforms, heavy machinery dashboard prototyping, and specialty military vehicle mockups requiring clear, robust multi-parameter displays.
The DO903 platform's strength lies in its modular processing unit. Utilizing advanced Bluetooth & high-speed OBDII protocols, it translates raw engine control unit (ECU) signals into zero-lag visual outputs across critical vehicle systems.
Why global B2B procurement professionals choose our Ruian manufacturing facility for high-volume automotive gauge sourcing.
The automotive gauge sector requires strict micro-electronic assembly standards. At Ruian DongOu Automobile Meter Factory, we combine Chinese cost efficiency with state-of-the-art testing equipment to deliver unmatched performance values.
A look into the technical data and parameters monitored by our high-end multi-function racing displays.
Legacy dashboard layouts require multiple, complex individual gauges running wire looms across the engine firewall. The DO903 system solves this integration bottleneck by collecting multi-channel inputs via a single central processing unit. The data is delivered instantly to a high-brightness LCD screen, providing drivers with absolute clarity during high-G racing scenarios.
By integrating OBDII readouts with supplemental sensor inputs, the system ensures accurate data acquisition. Professional racing tuners can monitor oil pressure and exhaust gas temperatures side-by-side with real-time intake pressures, safeguarding high-performance engines from catastrophic failures.
No matter where you install it, our dashboards deliver structural stability and accurate readouts.
Tuning shops worldwide utilize the DO903 dashboard as a clean solution for clients looking to consolidate up to nine dashboard meters. Its modular styling integrates into custom center consoles or replaces standard driver instrument clusters.
With models featuring waterproof outer casing (like the DO908) and shock-resistant internal builds, our dashboards withstand the extreme vibrations and atmospheric variations found in professional rally stages and demanding road courses.
Modern electric vehicle conversions and restomods rely on digital gauges to present non-standard motor speed sensor data, custom voltage readings, and thermal characteristics without complex custom system development.
How we support distributors, racing team managers, and automotive wholesalers globally.
As a dedicated manufacturer, we coordinate with procurement officers to streamline wholesale supply logistics. We understand that global importers require flexible options and technical reliability.
Technical clarifications, sourcing support, and operations info from our engineering team.
The DO903 utilizes a specialized, high-speed Bluetooth/OBDII transmitter unit. This interface plugs directly into the standard OBDII diagnostic port, pulling parameters like RPM, coolant temperature, and system voltage. For vehicles without OBDII protocols, supplementary sensor kits (included in specific packages) allow direct wiring of oil temp, pressure, and boost sensors.
Yes, Ruian DongOu Automobile Meter Factory provides extensive OEM/ODM support. This includes customized packaging layout designs, silkscreen laser branding on gauge rims, custom boot screens with your company logo, and custom LED colors to match your brand's style.
All products manufactured under our SincoTech and GragonGauge labels are backed by a comprehensive 1-year factory warranty. If an electronic component exhibits failure under normal operational conditions, we verify the diagnostic codes or images and provide replacements with your next bulk shipment.
Yes, as long as the vehicle has a standard OBDII port running standard OBDII protocols. For custom hybrid assemblies and older diesel setups lacking diagnostic ports, custom installations using direct sensor configurations can be used to gather oil pressure, exhaust temp (EGT), and boost parameters.
Select and configure high-precision meters from our full factory list below.
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