Smoke Detector,3 Packs Photoelectric Smoke Alarm Fire Alarm with Light Sound Warning 9V Battery (Included) Powered Fire Safety for Home Hotel School etc Passed UL Certification
- ...ry(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 placesThis 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 TipsPlease 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..