5 EASY FACTS ABOUT WIRELESS FIRE ALARM SYSTEMS DESCRIBED

smoke, cause a fire sprinkler. Most fire sprinkler heads come Geared up using a glycerin-stuffed glass bulb. As being the glycerin heats up mainly because of the warmth from the fire below, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler change senses this movement of drinking water and transmits a signal in