FAQ - Frequently Asked Questions

Choose the connection that fits your vehicle and the readings you need:

• The current Flock OBD-II adapter reads available ECU data on supported stock CAN-bus vehicles. Confirm the exact vehicle, ECU and diagnostic protocol; an OBD-II port or model year alone does not guarantee compatibility.
• Compatible wired analog sensors can provide readings such as oil pressure, temperature or boost. Verify the sensor, harness, fitting and installation requirements for your engine.
• You can use the OBD-II adapter and wired analog sensors together.

The dedicated CANbus adapter for aftermarket ECUs is in final hardware testing and is not yet available for sale as of October 9, 2026. Compare all three connections.

If you're not sure, email hello@flock-mfg.com or DM @flock_mfg with your car year, make, model, engine, ECU and the readings you want.

The Flock Gauge displays up to four readings on one 52mm screen. You can add or change compatible sensors without adding another display or mounting hole, and customize the face, layout and warnings.

Choose the adapter or sensor package for your setup. See the Flock 52mm Gauge product page for current prices, package contents and availability, and Extra Sensors for additional sensor options.

• Custom Background Images
• Custom Needle for analog gauge
• Custom colors
• Screen layouts (choose what data displays)
• Sensor naming (call it whatever you want)
• Display modes (single sensor, multi-sensor, scrolling)
• Warning thresholds (set your own alerts)

Full control: You decide what your gauge shows and how. Want oil temp front and center? Done. Want it to cycle through boost → oil temp → coolant temp every 5 seconds? Done. Want to name sensors something funny? Go for it.

Coming soon: Custom startup animations. (Follow @flock_mfg for updates)

The GBA (Gameboy Advance) adapter lets you use Flock Gauge as a functional gauge with a completely stock Gameboy Advance. It loads a custom ROM (Game) onto the GBA through the link cable at bootup and then reads data from the gauge.

Real talk: The GBA adapter is 20% functional, 80% vibe.

• Functional: Yes, it works as a real gauge on the GBA
• Practical: Kind of, the screen is a decent size on the GBA
• Vibes: Yes

Who it's for: People who want the ultimate retro build aesthetic. Most customers stick with the 52mm dash mount because it's easier to read while driving.

Honestly? I built this because I thought it was cool. If you want maximum practicality, get the standard version. If you like the vibes, get the GBA adapter.

Yes. The Flock Gauge supports standard OBD-II PIDs and custom manufacturer-specific PIDs. The vehicle and ECU determine which readings are available.

On a supported stock CAN-bus vehicle, the OBD-II adapter can read channels such as RPM, coolant temperature and vehicle speed when the ECU supplies them. Confirm any specific reading you need before ordering.

On a supported vehicle, the current OBD-II adapter reads the stock sensor data that the ECU makes available. It does not guarantee access to every sensor fitted to the car.

OBD-II: Use it for available ECU channels such as RPM, coolant temperature, speed or throttle position.

Wired sensors: Add a compatible sensor for a reading the ECU does not provide, such as oil pressure, oil temperature or boost. Check which parts are included in your selected package.

You can combine OBD-II readings and wired sensors on the same gauge. See the connection comparison.