PRO3 Professional Electronic Racing Gauges | Automotive Electronic Gauges Manufacturer | Shadow

PRO3 Professional Electronic Racing Gauges | Shadow has top R&D technology and one-stop R&D management process.

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PRO3 Professional Electronic Racing Gauges | Automotive Electronic Gauges Manufacturer | Shadow

Based in Taiwan since 1999, AUTO JAW CO., LTD. has been a professional manufacturer of automotive electronic gauges in the race car industry. It's main race car gauges include, digital dashboard displays, digital electronic boost controllers, turbo boost racing gauges, boost pressure sensor adapters, boost oil pressure adapters, water temperature sensor gauges, electronic throttle controllers, boost reference adapters, with 99.43% product yield rate, major in automotive electronic modification and reverse engineering. All automotive gauges and instruments are manufactured with a series of tests, ranging from environmental simulation test, accuracy correction, actual vehicle test, programming test and assembly test.

With 20 years of professional R&D and manufacturing of automotive electronic modification products, creating highly cost-effective products. Shadow has been offering our customers high quality Car Meter, Auto Meters, Auto Gauges, shadow gauge, shadow motor, Sport Meter, Shadow Pro2 Gauge, Electronic Controller System, OBD2 Digital Meter Lite, Tubro Timer, VOLT Systems since 2000. With both advanced technology and 17 years experience, Shadow always make sure to meet each customer's demand.

Shadow has been providing customers with high performance race car electronics gauges since 1999, both with advanced technology and 25 years of experience, Shadow ensures that each customer's needs are met.

PRO3 Professional Electronic Racing Gauges

Built to Drive with You

PRO3 Professional Electronic Racing Gauges
PRO3 Professional Electronic Racing Gauges

The PRO3 series offers comprehensive monitoring of critical vehicle data, including coolant temperature, oil temperature, oil pressure, fuel pressure, turbo boost, exhaust gas temperature, and battery voltage. Paired with weather-resistant, automotive-grade sensors, the system delivers stable and accurate performance under all conditions.

Evolving through three generations—from PRO to PRO2 and now PRO3—this series has undergone rigorous real-world testing under extreme driving conditions. PRO3 inherits the professional DNA of its predecessors while enhancing response speed and reliability, delivering precise, real-time feedback for every high-performance drive.

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Related Products
  • Water Temperature Racing Gauge - Water Temperature electronic racing gauge measurement range is from 20°C to 120°C
    Water Temperature Racing Gauge

    The Shadow Water Temperature Racing Gauge features a highly responsive needle that provides real-time, accurate readings of coolant temperature, allowing drivers to monitor engine conditions at all times and effectively prevent risks caused by overheating.The high-precision dial uses a special light diffusion panel combined with a 6-level adjustable LED backlight system, ensuring clear visibility under various lighting conditions. It also supports small light signal input, allowing the gauge to automatically switch brightness and backlight color between day and night modes.Its distinctive bright orange CNC-machined aluminum mounting ring replaces the traditional sleeve-type bracket, enhancing product recognition and heat dissipation while showcasing a sleek, race-inspired style.


  • Shadow Oil Temperature Racing Gauge - Oil Temperature Racing Gauge Measurement Range is from 50°C to 150°C
    Shadow Oil Temperature Racing Gauge

    Shadow Oil Temperature Racing Gauge provides accurate data. Use the technology of digital imitation to create a digital gauge that can obtain accurate information and make the pointer rotate smoothly and precisely. Through the new signal circuit design, the sensor can input a clean signal source and avoid other noises induced by the racing gauge. It can also synchronously return the display to accurately display the oil temperature. The precise scale is matched with the LED six-segment dimming system and two backlight (White and Amber), allowing users to recognize clearly without disturbing the driving sight. With the dynamic meter stand, users can adjust the best viewing angle to see the information. The unique orange aluminum ring design of the Shadow electronic racing gauges not only increases product recognition, but also replaces the traditional sleeve-type feet to increase heat dissipation efficiency.


  • Oil Pressure Racing Gauge - Oil Pressure Racing Gauge Measurement Range is from 0 Bar to 10 Bar
    Oil Pressure Racing Gauge

    Shadow oil pressure gauge movement program operation is fast and a brushless motor is used to reduce kinetic energy loss. We also use high-standard sensors to cut the electronic signal into 1088 micro-steps, so it can quickly feedback accurate information to the driver. The precise scale is matched with the LED six-segment dimming system, allowing users to recognize clearly without disturbing the driving sight. With the dynamic meter stand, users can adjust the best viewing angle to see the information. The unique orange aluminum ring design of the Shadow electronic racing gauges not only increases product recognition, but also replaces the traditional sleeve-type feet to increase heat dissipation efficiency.


  • Exhaust Gas Temperature Racing Gauge - Exhaust Temperature Racing Gauge Measurement Range is from 200°C to 1100°C
    Exhaust Gas Temperature Racing Gauge

    Exhaust Temperature electronic racing gauge adopts common specifications of racing gauges 1/8NPT thread gauge. Two-wire (independent ground) exhaust temperature sensor.


  • Voltage Racing Gauge - Voltage Electronic Racing Gauge Measurement Range is 8V ~ 18V
    Voltage Racing Gauge

    Voltage electronic racing gauge using micro-control technology to resolve the pointer movement angle of 270 degrees into 4088 micro steps. It can detect subtle voltage changes. The vehicle power system is connected in series to monitor the battery voltage. Voltage electronic racing gauge measurement range is 8V ~ 18V. The battery voltage must be maintained at 13V before start up the vehicle. If the voltage is too low, then it will need to check about the battery life.



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SHADOW will not only be a pronoun of global automotive electronics products in the future, but also a good partner for modified car owners! Let more people experience the pleasure and convenience of modified vehicles through SHADOW's products!

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