Hello, Just became the proud owner of a 2013 Minn ViewProfile 24G. Traded a 2012 Roadtrek RS Adventerous 1900 miles,with wich I had become very very disenchanted. After discussions with RT Iam glad ...
On the fantastic vent the rain sensor is a little circuit board under the plastic vent cover. When the vent is open any rain that hits the sensor will cause the vent to automatically close. It worked very good for us, I don't know what would happen in very humid areas or if there was heavy fog. If memory serves correctly there is a switch that allows you to turn this feature off.