This product is no longer available. Some accessories, replacement parts, or services may still be available.
231 Wetness Sensing Grid


This CR21 version of the 237 Leaf Wetness Grid is retired. The 231 (pn 2375) primarily measured the percentage of time that a surface was wet versus dry. It was intended to emulate a leaf surface. The measurement was made by determining the electrical resistance on the surface (that is, a wet surface is less resistant). The 231 was shipped unpainted; the customer determined the appropriate paint to apply to the sensor's surface. The wet/dry transition point for the application was also determined by the customer.