FIRE ALARM SYSTEMS SECRETS

smoke, cause a fire sprinkler. Most fire sprinkler heads come Outfitted having a glycerin-crammed glass bulb. Because the glycerin heats up due to the warmth from the fire under, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler change senses this flow of h2o and transmits a signal to your fire alarm user inte