Little Known Facts About wireless fire alarm systems.
smoke, set off a fire sprinkler. Most fire sprinkler heads come Geared up by using a glycerin-filled glass bulb. As being the glycerin heats up due to heat from the fire under, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler swap senses this stream of water and transmits a sign to the fire alarm user interfa