Recent trend is the development of Smart homes all around the world. Home automation has become very affordable and many people, industries has started to automate daily routines like light, fans, setting the temperature, etc, The main objective of the project is to build a Gas leakage detector using LPG gas sensor this device will continuously monitor the level of LPG gas present in the air and also connect it with IoT using ESP module for safety and security. This system can be installed in homes, hotels LPG gas storage areas. Arduino is used as the main controller. Smart fire extinguisher systems are installed in buildings and rooms where the gas leakage and fire hazard are comparatively high. We have implemented an automatic fire extinguisher system that will detect gas leakage and fire for the home. When the system will detect the leakage or fire it will automatically turn on the extinguisher of the specified area & in the meantime, it will also send a message to the fire brigade with the help of the Global System for Mobile Communication (GSM). This system will send an early alarm when the fire occurs and helps to reduce the fire damage. This system will consist of a fire sensor, gas sensor (MQ2), water sprinkler, ESP8266 Wi-Fi Module for the Internet of Things (IoT), and GSM module. The sensor signals will be fed to, and processed by the Mega Arduino 2560 program which will poll the sensors to monitor the environment.