Correct installation of your Substrate Moisture sensor will make sure that your data will not be affected by the installation. Poor installation can potentially cause accuracy loss greater than 10%. The position of the sensor, the calibration for the right substrate profile, clean probes, and air gaps can affect the accuracy of the sensor.
The sensor probes should be inserted fully, with the probes perpendicular to the slab. If you use a calibration, please check the specific position/orientation for the sensor. The position and orientation are also described in the name of the calibration in the platform.
Avoid air gaps around your probes
When installing the sensors, please avoid air gaps. The probes of the sensor should have direct contact with the substrate. Air gaps would affect your data. Metergroup has described two scenarios of what air gaps look like in your data. Click here to learn more from Metergroup.