A major problem in industries and homes is the leakage of gas. One of the preventive methods to stop accident associated with the gas leakage is to install a gas leakage detection kit at vulnerable places. This project aims to automatically detect, alert and alert gas leakage. Particularly, a gas sensor having a high sensitivity to gases like propane and butane is used (Ramya and Palaniappan, 2012). This system consists a GSM Module which is able to send an SMS to alert the user (Padmapriya and Kamini, 2013).