1. Locate your chosen sample site – you can use the GPS mapping feature on the app to do this if you’ve recorded the sample locations previously.
2. Calibrate device (once per day of use)
3. Follow instructions on device – normally:
4. “dib” a narrow hole into the soil (as wide as the probe)
5. Insert probe into hole
6. Leave for a few seconds in order for the reading to stabilise
7. Record the value on the app