Knowing the difference between single and double-station smoke alarms helps you to design a protective fire alarm system in your place. As the name suggests, a single-station smoke alarm means that there is only one smoke alarm in your residence.  A multiple-station smoke alarm demands that two or more smoke alarms should be connected. If one smoke alarm goes down in flames, the others still produce the warning even if they have not sensed the smoke. The latter is a whole lot better than the former as it gives better odds of protection.