alarm
alert
background
box
break
break glass
brick
button
case
color
control
danger
detector
emergency
equipment
fire
flame
glass
home
industrial
light
object
oil
panels
pipeline
protection
pull
push
red
rescue
safe
safety
school
security
service
sign
signal
single
siren
smoke
sound
sprinkler
strobe
switch
system
terminal
urgency
wall
warn