fire alarms for home smoke Detectors with Enhanced 10 years Photoelectric Sensor,optical alarm 5 Year Battery Operated office 1pack

LONG LIFESPAN - The fire alarms for home are manufactured in accordance with EN14604 standards and have a service life of up to 10 years. Equipped with a 5-year replaceable 9V battery. You can replace the battery themselves when power is depleted 85dB LOUD ALARM - This fire alarm for home features an 85dB alarm with a 20-40 m² detection range. Includes red LED indicator light. Continuous alarm until smoke disperses or Test/Silent button is activated EASY-TO-INSTALL BATTERY SMOKE DETECTOR - No wiring required. All accessories included. Wall/ceiling mountable design for apartments, dormitories, or hotels AUTO-CHECK SMOKE DETECTOR - Performs 30-second self-test with red LED flashes. Alerts via beeping and flashing light for abnormalities. Ensures 24/7 safety monitoring DUST-PROOF DESIGN & FLAME-RETARDANT MATERIALS - Built with high-temperature resistant components (operating range: -10°C to 55°C). Reduces false alarms through advanced air intake filtration system. Maintenance: Test monthly. Clean dust biannually with soft brush, Weight: 0.275 pounds, Manufacturer: Guangdong Isafenest Co,Ltd