RainWise - Model LW - Leaf Wetness Sensor - Datasheet
The RainWise Leaf Wetness Sensor consists of a gold plated printed circuit board with a pattern that conducts in the presence of moisture Any moisture, including dew, that collects on the board will cause a contact closure. When connected to a RainWise logger, this energizes a timer which records the “leaf wetness time” in hours and ...