Abstract: Disposable electro-cardiogram (ECG) transmitter device and a facilitator for proper placement of electro-cardiogram electrode nodes on a body, such as a human body. The device includes a substrate, integral non-replaceable battery and encapsulated waterproof electronics, and at least one data relay conduit integrally disposed on the substrate and capable of operative contact with a human body. Another embodiment includes a human-shaped or other anatomically shaped substrate and at least one data relay conduit integrally disposed on the human-shaped substrate and capable of operative contact with said human body. In this way, data relay conduits may be more easily and properly placed on the human body by placing the conduits at locations corresponding to their human-shaped substrate locations.