After the government issued policy conversion kerosene to LPG gas, many home fires occur in result due to leakage of LPG gas. This is because a lot of gas cylinders that have been damaged and installation errors. The development of digital technologies provides solutions in an early warning system in case of gas leaks and fires. This system uses two sensors to alert, there is smoke detector sensor for the detection of fires and TGS2610 sensor for LPG gas leaks. Danger signs of the sensor will send a unique SMS to the user's mobile. This system uses a microcontroller ATMega8535 to manage all activities of the assembled systems, and interface with sensors that have been installed.