Wet Switch

Taken from the Home Depot website. “The Wet Switch is a solid state device designed to detect the presence of condensate water overflow. The Wet Switch is placed into the secondary drain pan - a normally dry pan. If the primary drain pan fails, condensate water will overflow into the secondary drain pan. Upon sensing moisture, the Wet Switch will turn the system off (typically the cause of the condensing water) to help prevent damage to carpets, walls, woodwork, ceilings and other property. Wet switch is designed to interrupt the operation of cooling systems; however, it is a water activated switch and can be used in a variety of other applications Double throw relay, standard 24-Volt AC control Multiple unit connectivity Epoxy encapsulated electronics