Smoke, set off a fire sprinkler. Most fire sprinkler heads occur Outfitted with a glycerin-filled glass bulb. Because the glycerin heats up a result of the heat from the fire underneath, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler switch senses this flow of https://wirelessfirealarmsystems68900.59bloggers.com/35848484/5-simple-techniques-for-fire-alarm-systems