The Moen Flo valve does more than that! Every night it will shutoff your water and observe the pressure. If the pressure drops when the valve is off it will ale

The Moen Flo valve does more than that! Every night it will shutoff your water and observe the pressure. If the pressure drops when the valve is off it will alert you of a leak. They're a bit costly at ~400 bucks, but water damage is so expensive it's worth it. I have one and it's great. Insurance companies will give you a small discount if you have one installed as well.