water detection alarm 1.9V battery water detector; 2.Low battery alarm; 3.Loud alarm 85dB at 10feet; 4.Place anywhere; Water detection alarm PW-312 is designed to protect your home from potential water flood damage by placing anywhere a potential water leak exists -- near or beneath sump pumps, plumbing, refrigerators, dishwashers, washing machines, sinks, water heaters, toilets, basements and ...