Whisperer Test

My new whisperer is connected inserted into the ground as per the instructions.  It has been there for two days through various watering cycles but the app says the topsoil moisture level is 0% ( the subsoil is 88%).  Is the unit defective or am I missing something?

Answer From Eddie Fok

30
Eddie Fok
 Updated at 2019-07-14 03:33:12 UTC
You can try insert the sensor all the way down until the plastic base decoration touchs the soil (Look at the manuel for more detail). That's how I get my sensor start working. 
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