You should never ignore the importance of smoke detectors, but old models are being replaced by smart smoke detectors for more safety features and extra convenience ...

This photoelectric smoke detector circuit uses one LED and 2 LDRs to detect the smoke and sound an alarm. The LM1801 IC is the best choice for this circuit because we need a few external components ...

This home smoke detector circuit warns the user against fire accidents. It relies on the smoke that is produced in the event of a fire and passes between a bulb and an LDR, the amount of light falling ...

Installing and maintaining smoke and carbon monoxide (CO) detectors can save your life. Fortunately, they’re inexpensive and easy to put in place. Basic smoke detectors cost as little as $15 and ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more The best smoke detectors are a necessity for every home, quickly detecting fire, smoke, and carbon ...