Smoke detectors and fire alarm systems for home and property safety. Photoelectric and ionization smoke sensors providing stable, reliable fire detection. 80-decibel audible alarms immediately triggering when smoke concentration reaches dangerous levels. Sound and light alarm functions with manual test and automatic reset capabilities. Ultra-thin designs with strong environmental adaptability for various room conditions. SMT manufacturing ensuring dustproof, insect-proof, and white light interference resistance. Easy ceiling installation with mounting bases and battery connection. Suitable for hotels, warehouses, offices, restaurants, hostels, factories, and residential properties. Essential safety equipment providing early warning to prevent fire damage and protect lives.