Intuitive Sound LED Light Warning: The moment our smoke alarm detects any sign of combustion, the red LED Light instantly flashes at a rapid pace, signaling a potential danger. With every flash, you're reminded of our advanced alarm system's unwavering vigilance. Rest assured, it only sounds when smoke or combustion particles are detectednot heat, flame, or gas Advanced Photoelectric Technology: Equipped with cutting-edge photoelectric technology, our smoke alarm is optimized to detect even the slightest sign of a smoldering fire. Light smoke, minimal heatit's all detected, ensuring your safety before a fire breaks out Effortless Installation: Setting up our smoke alarm is a breeze. Complete with screws and a bracket, it's ready to go in minutes. Powered by a 9V battery (included), it stays functional even during power outages. And with a convenient low-battery indicator, you'll never be left in the dark Versatile for Any Space: Radioactive-free and ready for any room, our smoke alarm ensures your home's safety from the attic to the basement. Except for the kitchen and bathroom, it's the perfect addition to every living space, keeping you and your loved ones protected Superior Warranty Service: We stand by our products with unmatched after-sales service. Any questions? Just reach out, and our team will get back to you within 24 hours, ensuring your satisfaction and peace of mind