Buy at Amazon.com Buy at Wayfair.com Detects CO, propane, and natural gas leaks Loud alarm Backlit digital display is easy to read First Alert has a range of reliable alarms, and the Explosive Gas ...

Kidde Nighthawk Carbon Monoxide/Explosive Gas Alarm ↓ Jump to Review BEST BANG FOR THE BUCK: Kidde Battery-Operated Carbon Monoxide Detector ↓ Jump to Review BEST PLUG-IN: First Alert CO600 ...

With a smart detector such as the First Alert L1 Wi-Fi Water Leak and Freeze Detector, you can catch and resolve most leaks before they do serious damage to floors, under-sink areas, and walls.