The rain sensor is an automation placed on top of the pergola and is activated by the presence of moisture. The purpose of the rain sensor is to eliminate any possibility for the pergola to remain open during a sudden and unexpected rain storm. At the first raindrop it will automatically activate the electrical parts of the pergola. As a result the pergola will close protecting the area underneath from the rain.
This automation system is specifically designed and developed for electrical aluminum pergolas and sunblockers.