Smoke Alarm with 10 Year Sealed Battery, Fire Alarm with LED Indicator Test/Silence Button Standards,for Home, School,Office Conforms EN14604 Standards，4 Piece

• Early warning: The photoelectric smoke detector recognizes slow smoldering fires with black smoke particles in good time and gives you a warning signal before the fire spreads.
• Environmentally friendly: The smoke detector contains no radioactive material and is therefore environmentally friendly.
• 10 years battery life: An inbuilt CR123A lithium battery provides a long life and warns you when the battery is low.
• Simple Operation: With the test function and mute button, you can easily test the smoke alarm and mute it if necessary to avoid unnecessary interference.
• Certified and reliable: The smoke alarm is EN14604:2005/AC:2008 certified, providing a reliable and long-term solution for protecting your home from fires.

Early Warning: The Photoelectric Smoke Detector Detects Smoldering Fires With Slowly Rising Black Smoke In Good Time And Gives You A Warning Signal Before The Fire Spreads Environmentally Friendly: The Smoke Detector Does Not Contain Any Radioactive Materials And Is Therefore Environmentally Friendly 10 Years Battery Life: A Built In Cr123A Lithium Battery Offers A Long Service Life And Warns You When The Battery Is Getting Low Easy To Use: With The Test Function And The Mute Button, You Can Easily Test The Smoke Detector And Mute It If Necessary To Avoid Unnecessary Interference Certified And Reliable: The Smoke Detector Is Certified According To En14604:2005 Ac:2008 And Therefore Offers A Reliable And Long Term Solution To Protect Your Home From Fires