Carbon monoxide is called the silent killer for a reason — you can't see it, smell it, or taste it. It can come from your furnace, water heater, gas stove, or even an attached garage with a running car. Every year, hundreds of families across the country end up in the emergency room because they didn't have a simple detector in the right spot. Here's the good news: a quality carbon monoxide detector costs about $25 to $40 and takes five minutes to install. Place one on every level of your home, especially near bedrooms. If you have a basement with a furnace, that's priority number one. Most plug right into an outlet or mount on the wall with two screws. A few quick tips. Look for detectors with a digital display so you can see actual CO levels, not just an alarm. Replace battery-operated units every five to seven years, and test them monthly the same way you'd test your smoke detectors. If your detector goes off, don't try to figure out the source — get everyone outside and call 911. We've walked into homes during renovation projects where the existing detectors were ten years expired. It's one of those things that's easy to forget about until it matters most. Take five minutes this weekend and check yours. It's the cheapest insurance you'll ever buy for your family. — The iSpec LLC Team