S (Sulfur) and N (Nitrogen) Sensor for soil

Hardware
1

Hi, I need help searching for a sensor to have data about Sulfur and Nitrogen for soil. About the price, it would be good if it is around 10 dollars.

2

Back to the drawing board. What you look for doesn't exist.

3

Welcome! I found a lot of stuff using "How to measure sulfur in soil" . I am not sure any will help. I know sulfur oxidizes and becomes a sulfate. I would expect better results with nitrogen.

4
  1. Take a soil sample.
  2. Test for sulfur.
  3. Test for nitrogen.
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