Smoke Alarm Alerter Impact Problem Approach A homeowner will know when their smoke alarm goes off even if they’re not home. Don’t need to buy a big security system to monitor your house. Problem Regular smoke alarms are useless when no one is home. Security systems that already do this are expensive. Approach Smoke alarm calls a number you that program in when the it goes off. Backup numbers will be called if no one answers, such as immediate family, neighbors, or 911. A programmable voice will automatically be played when the other phone has answered. By: Deric Sutton