Flo by Moen Smart Water Detectors can be placed in your home anywhere moisture could be a problem, such as the basement or laundry room, to provide round-the-clock protection. When water, excess humidity or extreme temperatures are detected, the unit sends an alert via the Flo by Moen app, sounds an audible alarm or emits a blinking LED light. Use detector as a standalone monitoring device or connect it to the Flo by Moen Smart Water Shutoff (sold separately) for whole-home protection.