Photoelectric Smoke Detector, 5 Packs Portable Smoke and Fire Alarm Sensor with 9V Battery Operated,UL Listed

Photoelectric Smoke Detector, 5 Packs Portable Smoke and Fire Alarm Sensor with 9V Battery Operated,UL Listed

• 【Photoelectric Technology】Our photoelectric smoke alarm with Photoelectric technology which is optimized to detect slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames.
• 【Sound& LED warning】When the alarm senses products of combustion and goes into alarm,the red LED will flash rapidly(one flash per second).The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.Smoke alarms can only sound their alarms when they detect smoke or detect combustion particles in the air.They do not sense heat,flame,or gas.
• 【Easy Installation】Can be installed in several minutes. Coming with screws and bracket. Powered by one 9V battery(included), it will not be affected by power outage. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery.
• 【Suitable for multiple places】This smoke alarm does not contain any radioactive material. Smoke alarms should be installed in every room (except the bathroom and kitchen), finished attics and basements, making sure the people in your home will be able to hear and respond to the alarm sound.
• 【Maintenance Tips】Please test it once a month to ensure that the smoke alarm works properly. Please clean up the dust on the alarm every 6 months to prevent the smoke alarm from being clogged or blocked. The entry of dust and fiber can cause false alarm, just need to clean these foreign objects to resume normal work.