Water level sensor I have not been able to find a decent data sheet for a sensor like above. From looking at it looks like it could be a differential amp. I am not sure if they make them in 3 prongs. I have only seen chips. Could someone give me some insight to the making of this sensor? Mostly f…

Water level sensor question

grio November 23, 2017, 12:24am 3

Shouldn't be a PNP?

5V is present on the base when the circuit is dry and a you add water you reduce voltage seen at the base in the laws of a voltage divider?

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