# How to find your Matter pairing code

> Where to find the Matter QR code and the 11- or 21-digit manual pairing code on a smart home device, its packaging, and in the app.

_Updated 2026-07-10 · Source: https://rematter.app/guides/find-matter-pairing-code/_

Every Matter device ships with a **pairing code** you scan or type to add it to a
home. It comes in two interchangeable forms: a QR code and a numeric manual
code. Knowing where to look saves you a lot of squinting.

## The two forms of the code

- **The Matter QR code.** A square QR whose data starts with `MT:`. Scanning it
  is the fastest path; it carries the full onboarding payload.
- **The manual pairing code.** A string of digits, usually printed right under
  the QR, for when a camera can't reach or read it. It's either
  [11 or 21 digits](/guides/matter-manual-pairing-code/) and is often shown
  grouped, like `3497-011-2332`.

Either one adds the same device, so capturing **just one** is enough.

## Where the code is printed

1. **On the device itself.** The most common spot, a small label on the back,
   base, or underside. On battery-powered gear, check **behind the battery
   door**.
2. **On the box or packaging.** Frequently a duplicate label on the carton or a
   pull-out card.
3. **In the quick-start guide.** The paper leaflet often reproduces the QR and
   manual code together.
4. **In the manufacturer's app.** Some brands surface the pairing code on the
   device's detail/"about" screen even after it's set up.

## Look for the Matter logo

Genuine Matter codes sit next to the **Matter wordmark** (three arrows forming an
"M"). If you see a QR with no `MT:` data and no Matter mark, it may be a
Wi-Fi-setup or brand-account code, not the commissioning code you need.

## Found it? Save it before it's gone

A printed sticker is a single point of failure: it fades, peels, or gets
recycled with the box. Scan the QR or enter the manual code into
[ReMatter](/) once and it's archived on your phone, searchable and ready the next
time you need to [re-pair the device](/guides/lost-matter-qr-code/).