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Paul Obrien said:you can make your own, get two matched(as close as possible, get a container with two equal sized chambers (make from pc board) have the two resistors mounted equidistant from the walls. Drill a small hole into ONE of the chambers. Apply a constant current to both resistors(in a bridge config) and the difference in voltage across the two resistors will be due to humidity.
mramos1 said:Also, I saw no cost listed.. **broken link removed**
Anyone know of a cheap humidiy sensor like and LM35 or thermistor for a temp sensor?