Pros:

1. It is portable and of lightweight
2. It can be integrated with your smartphone for control
3. It gives instant notification in case of any leakage or potential flood causing issue arises.
4. It can be paired with a WiFi siren that gives an alert whenever there is any leakage
5. It is quite easy to setup
6. It is suitable for indoor an d outdoor usage

Cons:
When the WiFi connection is down, it is useless