In the context of the new paradigm of embodied intelligence invoked by both the roboticians and the cognitive scientists, a sensor bio-inspired from the electric fish was built. A certain geometry was pointed out for an accurate analytical prediction of the electrical measurements on the body in the presence of exterior objects. Such perception model can establish potentially a direct relation between the location of the object and the body positions measurements as well as the shape of the object and the body direction. In addition to a potential novel tomography technique and a new potential electrolocation system it o ers new insights in understanding the role of the body in perceiving the world.