– OneGauge Instruction Manual – a complete OneGauge guide from start to finish. This manual covers just about everything you need to do know, so we recommend reading through any features you might be interested in before purchase.

– 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 and Settings Files – this folder contains the following:
-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: OneGauge works with any device that supports Bluetooth, which is just about any device on the market today. OneGauge is optimized for the Torque app on Android devices, but you can upgrade to Apple, Windows, or Mac support when purchasing (you will the OBDII port and adapter option). To work in an app or program, the app needs to have the ability to add custom PID codes. Not all apps do this, but here is a list we have found. Let us know if you find any others!

Android: Torque Pro
Apple/iOS: OBD Fusion or Engine Link
Windows: OBD Dash
Mac: Coming Soon

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.

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: The goal of OneGauge is to keep things 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 guarantee does OneGauge offer? 

A: OneGauge comes with a 90-day defect guarantee 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 keep in mind– OneGauge can be produced and sold at a low cost because it’s a small operation. In fact, right now, it’s a one-man operation, and that man has a family, a day job, and does like to sleep occasionally. So, support may not be available at the instant you’re installing your OneGauge, but we will try our best to respond within 24 hours!

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: When I turn my vehicle on the power to the OneGauge cuts off. How can I prevent this? 

A: Often when a vehicle is starting the voltage available for accessories drops below what is needed to power the OneGauge. If you want to power your OneGauge constantly, including during startup, there is a USB port and a DC power jack on the side of each OneGauge. The OneGauge can be powered via this USB port using any kind of device charger, or, even better, a emergency vehicle jump starter with a USB port. For more information, see the OneGauge Installation Instructions.

Q: I want my phone or tablet to automatically start when I start the vehicle. 

A: This is definitely possible and works with most Android devices. For details on how to set it up, please review the “Torque App Setup” page of the OneGauge Installation Instructions.

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

A: All OneGauge products available for purchase on this site are built-to-order by hand and tested to ensure quality. Since we do not carry a large stock of items, please allow 1-2 weeks to receive a Hub Kit and, if you’re ordered a LCD screen, 2-3 weeks (LCDs require a lot of additional testing). Highly customized or complex products require additional time. If you requested a quote from us for an item designed specifically for your vehicle, the estimated production and shipping time should have been included with the quote.

If you ordered a product but have yet to receive it, or have not been sent a shipping confirmation, please email us at

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!