FIRE ALARM SYSTEMS SECRETS

smoke, result in a fire sprinkler. Most fire sprinkler heads occur Outfitted with a glycerin-loaded glass bulb. As being the glycerin heats up a result of the warmth from the fire underneath, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler switch senses this movement of h2o and transmits a signal towards the