> For the complete documentation index, see [llms.txt](https://help.verkada.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.verkada.com/air-quality/fr/donnees-des-capteurs/air-quality-sensor-power-requirements.md).

# Exigences d’alimentation du capteur de qualité de l’air

Verkada [Capteurs environnementaux](https://docs.verkada.com/docs/sensors-quick-start-guide.pdf) utilisent la norme industrielle 802.3af (Power over Ethernet \[PoE]). La consommation moyenne de bande passante est inférieure à 5 kbps. Verkada [Capteurs de qualité de l’air](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf) peut consommer davantage d'énergie lors d'opérations telles que des mises à niveau du micrologiciel ou un étalonnage initial.

Le tableau reflète la consommation électrique maximale pour un modèle de capteur particulier dans la plage de température normale.

{% hint style="info" %}
Nous recommandons de prévoir un budget d'alimentation supplémentaire sur votre switch pour la somme de tous vos capteurs.
{% endhint %}

|                                                                        |                                     |
| ---------------------------------------------------------------------- | ----------------------------------- |
| **Modèle**                                                             | **Fonctionnement normal (802.3af)** |
| [SV11](https://www.verkada.com/sensors/sv11/)                          | 4W                                  |
| [SV21](http://sv21)                                                    | 3W                                  |
| [SV23](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf) | 3W                                  |
| [SV25](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf) | 3W                                  |


---

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