【TO BE THE NO.1】:12-Year Professional Smoke Alarm.High performance-price ratio beyond all competitors. Industry Top Photoelectric Sensor,more effective at detecting slow, smoldering fires that smolder for hours before bursting into flame.Microchip® Professional chip,reducing the false alarm.Smart self-test function, malfunction warning, low battery warning. Anti-vibration design.
【10 YEARS BATTERY LIFE】：Bulit-in 3 volts battery, 10 years of 24/7 protection,never need to change the battery every year. Everyone who purchase Heiman® 10 years fire alarms will make a contribution to the environment. You will save more clean water for your future generations.
【SUPPER BUZZER】:Over 85dB alarm sound, make the sound heard throughout the house, wake you up even your are in deep sleep before the fire out of control.
【HUSH MODE】:Press the Test/Silence button to enable hush mode before the steam or kitchen fumes trigger unwanted alarms,the alarm will silence for up to 15 minutes. Operating LED.
【Professional Certification】:EN14604(UK) CE REACH BOSEC(Belgium). Britain's most authoritative fire testing agency professional testing.We are not afraid of any slander. Your family safty is the most important thing.Please feel free to purchase,we will use the real quality to break all rumors, we guarantee 100% refund if you are not satisfied with our smoke alarms.