Carbon Monoxide is a colorless, odorless, deadly gas that human senses cannot detect. It is the leading cause of poisoning deaths in North America. It is produced by the incomplete combustion of fossil fuels including natural gas, propane, kerosene, gasoline, and heating oil. Potential sources of CO include your fireplace, wood stove, furnace, water heater, gas dryer or stove, vehicles, grills or space heaters. Carbon Monoxide will make you drowsy and confused and can lead to unconsciousness, which will make you unable to save yourself if a store bought detector were installed. Having a monitored CO Detector means help would be on its way. Neighbors, friends, relatives, or authorities can be notified should your Monitored CO Detector activate. Statistics show that store bought detectors fail to operate almost 22% of the time and are not monitored. Building Codes now require Carbon Monoxide Detectors be installed on each level of your home. If you are required to have it …have it monitored. With Shearer Security Devices it will not cost you anything more to have it monitored. It only makes sense to add CO detection to your system.