Create Custom Soil Calibration
To enter a soil-specific moisture calibration click the Wrench icon on the left.
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667477640/custom-calibrations-1.png)
Select Calibrations from the menu.
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667500786/custom-calibrations-2.png)
Click the Add New Calibration button.
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667515087/custom-calibrations-3.png)
Enter a name for the calibration. You can choose to Clone values from the existing soil calibrations and then edit them, or start with all fields blank.
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667534184/custom-calibrations-4.png)
Polynomial calibration example: Enter the coefficients in the corresponding sensor row and boxes for each coefficient. (Ex. a:1.17E-09, b:-3.95E-06, c:4.90E-03, d:-1.92).
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667566065/custom-calibrations-19.png)
Coefficients can be entered in scientific notation or full decimal form. For example 1.0e-3 or 0.001.
Linear calibration example: Enter the coefficients in the corresponding sensor row and boxes for each coefficient. (Ex. c:8.50E-04, d:-0.481).
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667687676/custom-calibrations-20.png)
Enter additional media parameters. Click Accept to save the new calibration.
![](https://files.helpdocs.io/la7ra8dc1e/articles/l0arv0lpvr/1592667717109/custom-calibrations-5.png)
The values for Bulk Density, Dry Dielectric Permittivity and Particle Density are required in order to convert Bulk Soil Electrical Conductivity to Saturation Exctract and or Pore Water EC.