Detection is not diagnosis
A wet sensor tells you water reached that point, not why.
Place where water can actually reach the sensor
Around likely leak areas, placement is more important than hiding the device.
Test notifications
A sensor is only useful if its alert path reaches someone.
Automatic shutoff is a separate system
Motorized valves and plumbing integration require product-specific installation and safe manual fallback.
Keep in mind. Compatibility is not permanent. Confirm the current manufacturer, platform and certification information before purchasing, resetting or migrating a device.