Help save your home from potential water damage with the First Alert L1 WiFi Water Leak and Freeze Detector smart device. Easy to install and WiFi ready. Even when you are away, the reliable L1 WiFi Water Leak and Freeze Detector monitors temperatures and can warn you of leaks. This compact, smart device sends mobile push and email notifications, alerting you to water leaks, freezing temperatures, and humidity out of the set range. The water leak detector is designed to help you avoid potential water damage and costly repairs.