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Disaster of fire is a common problem to lives and property. An automatic fire extinguishing strategy provides real time monitoring, alerting and also extinguishing the fire. This paper involves the design of a low cost, robust and secure fire protection system for commercial buildings and also domestical buildings. It automatically extinguishes the disastrous fire that occurs accidentally and helps to reduce the disastrous damage caused by it. This project device consists of smoke detector, flame detector and a temperature sensor whose outputs are connected to the solenoid valve and a cooler fan. The system takes into consideration of density of smoke and then the over usage of extinguishing material can be avoided.