FS11 or FS21 not showing correct soil moisture at -10cm

Possible reasons

  • The sensor is not installed far enough into the ground, therefore it measures too much air
  • Because of drought the soil has started to crack and the -10cm is no longer sufficiently in contact with the surrounding material
  • The chosen calibration profile is not quite right, try another one

Steps to resolve

  1. Make sure the sensor is properly installed
    • FS11: until the indicator on the housing
    • FS21: until the white housing material begins
  2. Make sure the sensor isn’t surrounded by air pockets
  3. Pick another calibration profile to match your expectations