Instruction Manuals:

– Purchase Terms and Conditions – warranty and other information to read before purchasing.

– LCD Screen dimensions – dimensions and printable templates for each of our standard LCD screens.

Check our YouTube channel as well for instructions, walkthroughs, and more!

Additional Documentation:

– Tachometer Instructions – recommendations for getting various tachometer sensors to work with OneGauge.
– OneGauge Code, Code Update, and Settings Files – this folder contains the following:
-OneGauge Code Update folder
-RealDash XML/Description Files
-TunerStudio Config Files
-OneGauge LCD Screen Themes
– OneGauge CAN BUS Defaults – standard CAN BUS settings for OneGauge setups. Provides input and output protocols.
– OneGauge OBD PID List – provides codes and inputs for OBD setups (see Instruction Manual for details).

Q: What phones and tablets work with OneGauge? Will my Apple/Android/Windows phone or tablet work? 

A: For the best, fastest, and easiest results we recommend using an Android device with either the Torque Pro or RealDash apps. To work with Apple devices additional hardware is required and communication is noticeably slower than it is with Android devices. In the end, it’s best to take the money you would spend on adding Apple compatibility to the OneGauge system and buy an inexpensive Android device.

We also recommending testing the GPS functionality (speedometer and compass info) of your device using your selected app before purchasing a OneGauge system. Some (cheaper) devices have GPS capability but don’t seem to allow the GPS to function in the app itself.

Q: Is the OneGauge compatible with my vehicle, boat, or other motor? What about EFI systems (Holley Sniper, FiTech, etc)?

A: The goal of OneGauge is to be a universal product to that provides sensors for any application. We offer a variety of sizes of threaded sensors that designed to work in just about any application, as well as methods to connect with a variety of stock and aftermarket ECU’s as well as systems like Holley and Fitech. For complete information on the ECU systems we already support, please check out this link and scroll to the bottom for sensor lists:

When using standard sensors, OneGauge cannot share sensors that are also connected to or powered by other parts of the vehicle – for example, sensors that provide info to the ECU or dashboard. If a port is available for a dedicated OneGauge sensor then this is usually the best option. However, the OneGauge hub can be custom programmed when made to read these sensors in some applications. Once you’ve decided what sensors to include, you will need to know the port size for any threaded temperature or pressure sensors before purchasing a sensor. If you have questions, please contact us at!

Q: How does this thing work? 

A: We make our product as simple as possible to minimize headaches and make troubleshooting inexpensive and easy for a DIY’er. Each sensor collects data and sends it to the OneGauge Hub, which processes the data then sends it to your display. That’s it. This is why OneGauge can work with just about any vehicle- if we can find sensors that fit your application, we can likely find a solution. Everything is easy to replace in case of damage, and we work hard to keep costs down so you can customize the unit how you want. See our Features page for more information.

Q: What kind of warranty or guarantee does OneGauge offer? What about returns? 

A: Our full return and warranty policy can be found here in the Terms and Conditions of sale. OneGauge comes with a 90-day defect guarantee (we stand by our products and tend to support them much longer though) as well as any installation and troubleshooting support online by email or Facebook message. Electronics, however, are sensitive, and we cannot reimburse or replace components damaged by improper installation. Detailed instructions are provided at the top of this page to help you avoid making installation mistakes. If this is the case, OneGauge components are inexpensive and easy to replace should something happen.

Should you feel that you have received a defective product or sensor, please contact us at You can email the same address if you need troubleshooting or installation help, but it might be faster to send us a message through Facebook. Our Facebook page is

Q: Can I keep using my factory gauges and instrument cluster but add a OneGauge Hub and sensors? 

A: Absolutely! You can either add OneGauge specific sensors or email us ( to see if we can customize the unit to read your stock sensors.
In addition, if your vehicle is equipped with an OBDII port, there is an option available that allows the OneGauge Hub to read OBDII data from the vehicle and incorporate it into your selected display.

Q: How long will it take to produce and ship my OneGauge item? 

A: Most orders ship within 4 weeks, with highly customized orders sometimes taking longer and simpler orders needing less time to produce. These units are built-to-order by hand in the U.S.A.

Q: I’m not sure I want a certain sensor right now. Can I buy the Hub and then add sensors later? 

A: Yes! Most sensors can be added later. However, if you want a vehicle specific or custom sensor, it may require special programming and this is much easier done with the Hub purchase. Check out the OneGauge Hub product page or the OneGauge Sensor List for a list of specifications including the number of each type of sensor supported by OneGauge. Note that the limit to the number of sensors can be adjusted by special order- please email us for more information.

Please check our installation instructions above before purchasing additional sensors for specifications on how many sensors of each type the OneGauge Hub supports.

Q: Does OneGauge do sponsorships? 

A: OneGauge currently discusses sponsorships on a case-by-case basis. However, we are a small business with a very limited budget, so typically we do not offer free products in return for logo placement. Our primary issue with this type of sponsorship is that it requires OneGauge to take all of the risk (by providing free products) without any guarantee of a return. Instead, we may offer commissions or kick-backs on sales if referred by a customer. We are also more willing to discuss sponsorships if the customer is able to produce high-quality content or reviews of the product. As always, it can’t hurt to ask and we’re happy to talk if you have ideas that could help us reach new markets!