3-Gauge Round Digital Gauge Kit — OBD2

The 3-Gauge Round Digital Gauge Kit — OBD2 Kit plugs into your diagnostic port and puts real ECU data on full-color displays that drop into standard gauge openings. No sending units to buy, no sensors to thread into your block, no splicing into the engine harness.

Modern hardware behind the glass, period-correct look on the dash, and readings you can restyle from your phone.

What's included

• Three fully digital LCD gauges, 400 nits. Easily readable.
• Pod housings in PA12 (MJF), an industrial nylon that holds its shape through desert summer heat where standard printed or molded housings warp.
• RestoTach Main Hub, which handles every input and drives all displays.
• OBDLink MX+ adapter, which connects the hub to your vehicle's diagnostic port.
• Complete wiring harness, one harness covering every connection in the system: display communication and power, and turn signal inputs.
• GPS antenna that plugs into the hub's GPS port.
• Mounting hardware for hub and displays.

Reads what your vehicle already reports

• Live ECU data. Coolant temperature, RPM, speed, throttle position, intake air temperature, fuel level, boost, timing, and any other parameter your vehicle reports over OBD-II.
• Diagnostics on the dash. Read stored and pending trouble codes, get notified when a code sets, check emissions readiness monitors, and clear codes when the repair is done. No scan tool, no trip to the parts store.
• Turn signal indicators built in. Left and right indicators live on the gauge face, allow one on each gauge or both on the same gauge.
• GPS speed available. Vehicle speed can come from the ECU or from the included GPS antenna, whichever reads better on your setup.
• Brightness control with automatic dimming. Set the level you want, or let the gauges dim themselves as the day turns over.
• Up to two parameters per gauge. Run dual analog or digital styles with customizable features. Three gauges gives you room for six parameters on the dash.

The adapter works on its own, too

The OBDLink MX+ in this kit is a full-capability scan tool, not a locked-down module. Alongside RestoTach, you can run OBDLink's own app on your phone for deeper diagnostics whenever you want it.

That includes enhanced OEM support for Ford, GM, Mazda, Nissan and Infiniti, Toyota, Lexus and Scion, Honda, Hyundai, and Kia, which reaches manufacturer-specific systems beyond generic OBD-II: ABS, airbag, transmission, and body modules on supported vehicles.

Enhanced coverage varies by make, model, and year. Check OBDLink's compatibility guide for your vehicle before you buy.

One hub. Every configuration.

The hardware in this kit is the same hardware in every RestoTach kit. The only difference between them is which harness is in the box and whether an OBDLink MX+ is included. The hub itself is identical.

That means nothing here is a dead end. Add the direct sensor harness later and the same hub reads sending units, or runs both sources side by side. Swap engines, change how the car is set up, or move the system to a different vehicle, and the hub follows you. You buy the hub once.

The system gets better after you install it. As we release new features, themes, and improvements, they download through the companion app straight to your hub and displays. No pulling the dash, no shipping hardware back, no cables. The gauges you install today keep gaining capability.

The hub also supports up to seven displays. Start with three and add more as the build comes together. New gauges join the existing bus and configure from the same app.

Make it yours

Eleven built-in themes ship on every display: Base, Sports, Obsidian, Alabaster, Cobalt, Neon, GT, Square Body, Stealth, Carbon, and Classic White. Switch between them in the companion app in seconds, with no tools and no pulling the dash.

Beyond themes, you can control needle style, tick marks, numerals, custom face uploads, custom needle uploads, and full 360° face rotation, so the gauge reads level no matter how the pod ends up mounted.

Fitment

Choose the size of each of your three gauges independently. Mix and match to match your dash, a 3 3/8" tach flanked by two 2 1/16" gauges, three of the same size, or any other combination.

Requires a vehicle with an OBD-II port, standard on cars and light trucks sold in the US from 1996 forward. Available parameters vary by make, model, and year.

Pod outer diameter matches the opening. Measure your bezel clearance and depth behind the dash before ordering.

Not intended for street use.

Specifications