> For the complete documentation index, see [llms.txt](https://sensorbeeab.gitbook.io/sensorbeeab-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sensorbeeab.gitbook.io/sensorbeeab-docs/readme/sensorbee-air-product-manual/sensorbee-air-pro-2/quick-start-guide/5.-accessories-of-air-pro-2-cellular/5.2-external-add-on-sensors.md).

# 5.2 External add-on Sensors

The Sensorbee Air Pro 2 Cellular offers versatile expansion capabilities through dedicated ports for external sensors, supporting a wide range of accessories to enhance monitoring beyond air quality. Each of the sensors has their own unique installation instructions.

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