Optical fire detector on the ceiling
Palabras clave
buttons,
technology,
single,
rescue,
signalling,
red,
house,
firefighter,
detector,
equipment,
preventive,
siren,
protect,
warn,
device,
emergency,
danger,
electronic,
safety,
smoke,
security,
fire,
home,
optical,
ceiling,
fire alarm,
optical device