WIRELESS FIRE ALARM SYSTEMS CAN BE FUN FOR ANYONE

smoke, set off a fire sprinkler. Most fire sprinkler heads arrive equipped that has a glycerin-filled glass bulb. As being the glycerin heats up as a result of warmth from a fire underneath, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler switch senses this circulation of h2o and transmits a signal to your f