sensors

Sensing pH in a way that makes sense (for the other 90%), by T.H. Culhane

For years now, many of us have been engaged in various discussions and experiments to determine the best way to continuously monitor the pH of our biogas systems.  Those of us doing this at home on limited to nonexistent budgets have dreamed of an inexpensive DIY microcontroller based system that we can stick in a port in our tanks and forget about (except for the readings on our smart phones which would alert us when things are going sour, of course!).

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