If you think that smoke detectors are useless, then, you might change your mind anytime soon! In fact, having a working smoke detector at home can save your life and that of your loved ones, especially at emergency cases when a smoke or fire takes place. The alarm is loud and piercing enough to wake you, which gives you enough time to safely escape.
However, smart smoke detectors come with an additional perk! They can even send an alert to your smartphone and give you the option to temporarily silence the alarm from your own smartphone, which is really great!