Various

ELM327-compatible Bluetooth LE adapters

Engine data from almost any road car, for the price of lunch.

Plug an adapter into the OBD-II port under your dash and TRACK adds engine data to your laps and the dash: RPM, temperatures, voltage and more, depending on what your car reports.

01What it adds to TRACK

What it adds to TRACK

  • 01

    Know your engine is happy

    Coolant and intake temperatures on the dash, with warnings that flip to the engine page when something crosses your threshold.

  • 02

    RPM on your traces

    See where you shift and how long you hold gears, lap after lap.

  • 03

    Fuel and stint planning

    Fuel level where the car reports it, and fuel per lap and laps left estimated from it (labelled as estimates).

  • 04

    Honest per-car results

    TRACK discovers what your car supports and shows you exactly which channels work, not a generic promise.

02How it connects

How it connects

  1. 1Plug the adapter into the OBD-II port (usually under the steering column).
  2. 2Turn the ignition on.
  3. 3In TRACK: Garage › your car › Sensors › Add OBD-II adapter, and pick it from the Bluetooth list.
  4. 4TRACK checks which channels your car supports and runs a live test.

03Specs that matter to TRACK

Connection
Bluetooth LE (services FFF0 or FFE0)
Update rate
About 3–6 Hz per fast channel
What TRACK reads
RPM, speed, coolant and intake temperature, throttle plate, battery voltage, and fuel level or oil temperature where your car reports them
Writes to the car
Never

04iPhone & Android

iPhone and Android

iPhone appCompatible

Bluetooth LE adapters only.

Android appCompatible

Android app planned. Android can also use Classic-Bluetooth adapters, which iPhone can’t.

The TRACK iPhone app is in beta. The Android app is planned.

05Where it stands

Tested, pending, and good to know.

Verified so far
  • TRACK’s OBD engine (start-up, channel discovery, parsing, conservative polling) is tested against an adapter emulator.
Still to do
  • Specific adapters still need testing; results will be published per device.
Good to know
  • OBD-II reports engine data slowly, roughly 3–6 readings per second per channel over Bluetooth LE. Great for temperatures and RPM trends, not for millisecond analysis.
  • The OBD “throttle position” is the ECU’s throttle-plate reading, not your pedal. TRACK labels it that way.
  • TRACK only reads data. It never writes to your ECU and never suggests tuning.
  • Classic-Bluetooth adapters can’t work on iPhone: iOS doesn’t allow apps to use Bluetooth serial. On iPhone, make sure it says Bluetooth LE or BLE. Android can use both kinds.
All devices

Prices are typical US retail, checked October 2026, and change often. TRACK doesn’t sell hardware. Product names describe compatibility only; no partnership or endorsement is implied.