Spark- How many Whisper Gen 2 devices?

I would like to add a GEN 2 whisper to my Spark system because I cannot seem to rely on any of my three weather stations to provide accurate rainfall. I obviously don’t want to rely on a single sensor to determine the moisture level in my entire lawn, so can I add multiple to a zone and have Netro average it per zone? 

Answer From Wency Pan

19
Wency Pan
 Updated at 2025-05-19 09:53:00 UTC

Hi Kirk,


We understand your need to use multiple sensors for a specific area. Currently, each zone is designed to support only one sensor. However, a flexible workaround could be to divide the area you want to monitor into multiple zones. This way, each new zone can be assigned a sensor, allowing you to gather more data for different parts of the area.


Thanks,

Netro Support

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30
Kirk Davis
 2025-06-03 10:14:25 UTC  
that doesn't seem like it makes a lot of sense unless when you say splitting the zone you mean I would dig up my yard and split a zone in half that way. Otherwise, you would have to configure two zones on the controller and jumper the two zones together. That would allow you to see the two separate zones and water separately based on the readings, but it would not average the readings between the two sensors, which is the goal
30
Kirk Davis
 2025-06-03 10:18:16 UTC  
If you created a new zone, attached the whisperer to it, you would get a reading, but it wouldn't be affecting any change to the watering schedule, unless you jumpered your fake zone into the real zone where the other sensor is. Even then you would not get an average, it would just calculate based on that one sensor.