The product itself works amazingly. The main problem was that it lacked any kind of protective packaging to protect the product and it had two slightly bent pins, nothing major though. It also was just the product inside, no information about the pinout or functions. Other than those two things, absolutely perfect.
The device works. Maybe it would be nice to specify that the output pins are NOT potential free contact (dry contact) and may has to be relayed if necessary.
I tested the Soil Hygrometer in my plant. It worked out of the box. But there is a problem with the electrode material. Only one week after I started monitoring my plant, all the metal is gone. I didn't cover the whole module, only half, but there the metal is gone. Looks like electrochemical corrosion. How can I prevent this?
Response from MMM999 | April 3, 2022
I'm sorry for this, maybe the new models can prevent this problem
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