Check out THIS product! The Moen Flo Smart gets installed in-line with your home’s water main. It learns your water-usage habits for a week or two and then turns fully on, monitoring your water usage 24/7. If it detects a major or micro leak or unusual usage, you get a notification. If you do not respond to it, the Flo Smart will shut off your water to your home, protecting it in case the water usage was caused by a leak! If you know it was not a leak, you just hit a button in the app and your water stays on.
This system has given me so much peace of mind! It is VERY difficult to monitor your plumbing behind your walls, especially in the case of a very slow leak. The Moen Flo Smart makes it doable! I have NO affiliation with this product, it is simply one I use and love. 🙂