> 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/soil-sensors.md).

# Soil Sensors

**Soil sensors** are used for continuous measurement of soil water and related parameters in hydrology, agriculture, irrigation, watershed studies and environmental research. Depending on the sensor, measurements may include **volumetric water content (VWC), soil temperature, electrical conductivity and permittivity**.

FELYX supports digital soil sensors using interfaces such as **SDI-12 and RS485/Modbus**, allowing multiple measurement parameters to be acquired, logged and transmitted from remote field installations.

### Acclima TDR Soil Moisture Sensors

[Acclima TDS Sensor Manual](https://acclima.com/wp-content/uploads/Acclima-TDR-Sensor-User-Manual-REV-9-30-21.pdf)

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FDf39mv13QZciizkQ8P39%2Facclima_tdr_sensors.jpg?alt=media&amp;token=0e984d8a-6e7f-4d40-96b1-0ff5bd47bedc" alt=""><figcaption></figcaption></figure>