Adjustable Smoke Detectors
NASA did not invent smoke detectors. But they did make them better. They developed technology that would make sure that the detector was sensitive enough to catch fires early, but not enough to set off any false alarms. In order for this to work, smoke detectors look for particles in the air that have the same number of particles that can be found in smoke.
Since fires can cause devastation, having a detector that can catch a fire early is always convenient. This will not only give you enough time to put a fire out, it can even save your life if the fire is bad enough for you to evacuate.