# How do I scan a filter with the mobile app?

To record a filter, **first identify the equipment** (tap, shower…) in SILAB, then **scan the QR code of the new filter**: its reference is filled in automatically.

1. **Identify the equipment in SILAB**

   Three options:

    - **Scan the QR code** placed near the sanitary equipment, using the scan button in the middle of the screen (1st tab: **Scan**). These labels are provided by customer service: [support@silab.cloud](mailto:support@silab.cloud).
    - **Pick the equipment from the list** (2nd tab: **Checkpoints**).
    - **Scan the previous filter** already recorded in SILAB: with an internet connection, the app finds the associated equipment.

    ![Three ways to identify equipment in the SILAB mobile app](../../../../assets/articles/scanner-filtre-application-mobile/1.png)

2. **Record the reference of the new filter**

   - Tap the **SCAN icon** on the left (photo 1).
    - Hold the filter's QR code in front of the device (photo 2).
    - The reference is filled in automatically (photo 3).

    ![Scanning a filter QR code with automatic entry of its reference](../../../../assets/articles/scanner-filtre-application-mobile/2.png)

3. **Check the reference**, then confirm.

:::note[No network?]
Data is sent to the SILAB servers as soon as a connection (mobile or Wi-Fi) is available. Until then, it is stored on the phone.
:::

:::caution["Data could not be validated" message]
A QR code can be misread. If a message says the data cannot be validated, delete the reference you entered and scan the filter again.
:::

## Related articles

- [How do I identify equipment with the mobile app?](https://docs.silab.cloud/en/application-mobile/scan/identifier-un-equipement/)
- [How do I record data from the mobile app?](https://docs.silab.cloud/en/application-mobile/scan/enregistrer-une-donnee/)