 Some models combine the older ionic sensors that see fire with photoelectric sensors for the greatest protection. Another convenient feature is the reset or silencer button. This allows you to shut down the detector for approximately 10 minutes during a nuisance alarm, like burn toast, and then goes back to full alert. Resetting your detector is always a much better idea than removing the battery, which you could forget to put back. Keeping your smoke detectors in good working order could be a matter of life and death. That's today's Money Pit tip of the day.