Product life is 10 years!
Brand/Model Number: FSM-11410
• Description: The smoke alarm device is based on the principle of a photocell, which means that it monitors the presence of smoke caused by a fire in the air. This device contains a 9V DC battery with a lifespan of 1 year
• Function: The smoke alarm is designed to alert people who are near a fire/smoke from a fire so that they have time to properly react to the danger
• Scope Uses: Smoke alarm device for residential buildings