Here we present a novel electronic model of seismoelectric (SE) measurements. It allows to obtain the impedance seen by the electronic acquisition system while the SE effect is taking place. This information within this model is useful for a better estimate of the SE voltage in modulus and phase, i.e. being insensitive to the influence of the electronic acquisition system and contact losses linked to electrode coupling within the medium. Furthermore, the model implementation shows, where there are the constraints of the acquisition system and how the latter should be designed in order to better acquire the SE signal. The theoretical model presented is validated by laboratory measurements and simulations.