Water alarms and door alarms are designed to notify the homeowner or pool owner that someone or something has either left the house or has broken the water surface tension for the pool or spa. The alarms will have a 120-decibel siren that will go off informing the home or pool area of an issue. Door alarms commonly have a bypass button. The bypass button should be installed high enough to prevent children from hitting the button and exiting the home. The water alarm senses the water surface tension and will activate a 120-decibel siren when the surface tension of the water has been broken. This is extremely important for infants and weak swimmers.
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