Electronic sensors for sensing water leaks in residential and commercial buildings; Electronic sensors for sensing water located near the base of water-supplied appliances, devices, and systems; Electronic sensors for sensing water leaking from water heaters, washing machines, sinks, dishwashers, ice makers, refrigerators, sump pumps, basement toilets, and bathtubs; Electronic sensors for sensing temperature changes in the environment surrounding water-supplied appliances, devices, and system...