As a homeowner, you may have to face numerous threats to your home and family. One of the most deadly is a silent killer and the other is a deadly threat that can strike without warning- carbon monoxide and smoke.  It is important to be alerted and to do everything you can to protect yourself and your family from these deadly threats. But CO is invisible, tasteless, and odorless in almost all cases and smoke often is not noticed, especially at night, until it is too late.