Carbon monoxide (CO) is a leading cause of accidental poisoning deaths in America

According to the CDC, Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, (nearly 500 deaths annually in the United States) yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. CO monitors can detect the CO you can't see, smell or taste in the air.

I was originally going to order a $20 unit that was ranked highly on Amazon: "The First Alert CO600", but then I checked with Consumer Reports and found that there is a big difference in CO detectors...  The quality of detection increased drammatically at around $50, so I'm probably going to puchase: " First Alert OneLInk SCO501CN" instead.

 "Every home should have smoke alarms, and CO alarms are a must in all homes with fuel-burning appliances such as a furnace, water heater, range, cooktop or grill. Even an all-electric home may benefit from a couple of CO alarms" -Consumer Reports  http://www.consumerreports.org/cro/co-and-smoke-alarms/buying-guide.htm