3666 Leaf Wetness Sensor Brochure (PDF 44 KB)

3666 Leaf Wetness Sensor The 3666 Leaf Wetness Sensor is used to measure leaf wetness with its grid-like, resistance-based sensor, which is ranging from 0 ( dry ) – 15 ( wet ). This sensor is a circuit board with interlacing gold-plated fingers. Condensation on the sensor lowers the resistance between the fingers, which is measured ...