Designed to plug into open power outlet, Model DCH-S160 alerts users with 70 dB alarm and flashing LED whenever it comes in contact with water. In addition to audible siren with 6 customizable tones, users get push notifications with mydlink Home app for smartphones or tablets. Supplied with 3.3 ft extension cable and 1.6 ft sensing cable that detects water along its length, sensor can be placed near washing machines, sump pumps, water heaters, sinks, and dishwashers for leak detection.