Fire Burnt All / fire alarm

"Fire Burnt All" is a fire alarm device, which is designed especially for the hearing-impaired.
It improved the originals' defect (which only show a tiny LED light and a feeble warning sound while detecting the fire), and added the burning-smell to warn the people more efficiently.
With the smell of burning spilt, the odor would fill the room in seconds. You can close your eyes and wear earphones, but you can’t stop breathing.
The burning-smell here is not the real burning-smell which is harmful to health; it is made up of a mixture of flowers and fruits, just like a kind of perfume with unpleasant smell.