> For the complete documentation index, see [llms.txt](https://docs.yudash.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yudash.com/felyx/si/plant-science.md).

# Plant Science

Plant Science sensors are used to study plant growth, physiology and the interaction between plants and their surrounding environment. Typical measurements include **plant microclimate, PAR/light conditions, CO₂, temperature and humidity, NDVI/vegetation response, sap flow, oxygen and other plant-related parameters**.

These measurements are widely used in **crop and greenhouse research, controlled-environment agriculture, plant physiology studies, irrigation research, ecological monitoring and experimental field stations**.

FELYX can integrate with plant science instruments using interfaces such as **RS485/Modbus, SDI-12 and supported analog inputs**, depending on the sensor model. Sensor data can then be logged locally, processed at the edge and transmitted to remote servers or IoT platforms as required.

### Apogee SM-500 Guardian CEA Multi-Sensor Monitor

[SM-500 Documentation PDF](https://www.apogeeinstruments.com/content/SM-500-600-manual.pdf)

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2F78q8lNfM2W2nieoHJXgN%2Fapogee_sm_500.jpg?alt=media&amp;token=a836cd72-bc3d-4191-a1c0-981d5db95f93" alt=""><figcaption></figcaption></figure>

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FggKV99kkVSpy9pruEOOU%2Fapogee_sm500_deploy.jpg?alt=media&amp;token=57c9e26e-f9a8-4c73-93df-55d6a3556c24" alt=""><figcaption></figcaption></figure>

##

## Quantum Sensors

### Apogee SQ-522 Quantum Sensor

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FAP03U4tmtRW3Nsqig7Dy%2Fapogee_sq522.jpg?alt=media&amp;token=6d5f9578-e5ae-4f6e-b690-2a003ea3aeee" alt=""><figcaption></figcaption></figure>

[Apogee SQ-522 Documentation](https://www.apogeeinstruments.com/content/SQ-522-manual.pdf)

### Apogee SQ-618 ePAR Sensor

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2F5PcDeT061CP1NaI1KTVH%2Fapogee_sq618.jpg?alt=media&amp;token=e28e914f-7efa-42b1-87d5-b13a6b8f298a" alt=""><figcaption></figcaption></figure>

[Apogee SQ-618 Documentation](https://www.apogeeinstruments.com/content/SQ-522-manual.pdf)