by USB 5V indoor ？
Or by battery pack for outdoor?

Both ok !!!!

FRANKEVER Automatic Water Shut Off Valves – Save your Home from Flooding!

1. Easy to install – no need for professional plumbing
2.Allow automatic, remote on mobile phone or manual shut on/off function Save your Home from Flooding quickly
3.Works with water sensors to detect leaks , pipe breaks, frost temperature, and unusual water flow
4.Comes in request sizes for various pipe types (1/2″, 3/4″, 1″, & 1 1/4″)
5.Infinitely Expandable – can add as many leak detectors as required to protect any building
6. Flow rate can be set from 0-100% on app to limit water waste
7. Works with Google Home and Alexa

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