A Resideo professional installs a Resideo Water Leak & Freeze Detector near a water heater in a basement while a man and woman observe.

Professional-Grade Water Damage Prevention

The combined technology of the L Series product line gives homeowners the ability to stop leaks before damage occurs.

Detection and Protection


Comprehensive Coverage 

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Easy to Install

L Series Water Leak Control

Combining water leak and control technology from Resideo can help protect your customers from potential water damage and costly repairs.

Keep Customers Aware and in Control 

The Resideo App gives an advanced level of awareness and control, ideal for customers who own or manage a second property. By teaming the L1 WiFi Water Leak and Freeze Detector, the L2 WiFi Water Sensor and switch, and the L5 WiFi Water Leak Shutoff Valve, your customers have a comprehensive water management system that can be controlled from anywhere via WiFi.