The answer to 'how much does carbon monoxide detector cost in Illinois' is that the typical cost for a basic carbon monoxide (CO) detector in Illinois ranges from $20 to $100, depending on the features and quality. Factors that influence the price include the type of sensor, smart home integration, number of sensors, and whether it's a plug-in or battery-powered model.
It's essential to get quotes from local retailers or licensed electricians to ensure you get the right detector for your home and budget. They can also provide guidance on proper placement and installation to keep your family safe.