Embodiments of the present invention provides an apparatus containing a device communicably coupled to two electrodes that may be positioned on a body of a subject for obtaining 12 leads or 18 leads electrocardiogram. The two electrodes may obtain signal parameters such as arm leads (I, II, III, AVR AVL and AVF) and left chest leads (V1, V2, V3, V4, V5, V6) and right chest leads (V1R, V2R, V3R, V4R, V5R, V6R). The signal parameters may be detected and collected by the device for processing thereof and thus obtain 12 leads or 18 leads electrocardiogram that may be transmitted to a health care provider for seeking health assistance based on the transmitted electrocardiogram. Further, a method for obtaining the electrocardiogram using two electrodes is also provided.