A sprinkler system is unit of firefighting devices that is installed in buildings/ industries as a preventative measure in active fire protection system. The sprinkler heads are placed in the ceilings facing toward either the floor or towards any fire hit spots. Fire sprinkler systems work by way of a heat sensor bulb ( in various heat range) that is contained in the head of the system. If a fire starts, the heat from the flames will rise to heat the sprinkler sensor. When the heat exceeds a set point, the sensor bulb will break and the water will spray out onto the fire. A sprinkler system is an automatic system.The other end of the sprinkler system is connected to a number of pipes and a high pressure water supply. A fire sprinkler system is designed to put out a fire during its infancy stage before it develops.