Why a Water Leak Sensor Can Alarm Without Knowing the Leak Source
Water leak sensors are common in smart homes: near washing machines, under water purifiers, inside sink cabinets, near floor-heating manifolds, balconies, and basements.
They are simple and useful, but they are not leak-location instruments.
Most of them only know whether conductive liquid has reached the probe area.
The first model is: a water leak sensor detects resistance or conductance change between electrodes. The leak alarm is an interpretation that conductive liquid appeared at the probe location.
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