Fire Alarm 2in1 Carbon Monoxide + Smoke

Fire alarm or smoke detector doing it the same function, this is the newest budget digital alarm it can detect smoke and carbon monoxide
0:33 - What's Inside Smoke Alarm
1:01 - Fire Alarm First Start
1:31 - Decibels/Noise Test
2:00 - Smoke Test
3:04 - How To Mount Fire Alarm Easily
Smoke Alarm 2in1 - s.click.aliexpress.com/e/_9jce7F
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