Support intended to receive an electric element made of one or more sensorsntended to monitor the condition of a tire, and to keep the element on a rim while assuring electrical and thermal insulation relative to said rim. The support has at least two electric lines for connection to a coupling located on the outside of the pneumatic enclosure. Each electric line is formed of a length of electric wire sufficient in length to make a connection between the electric wire and terminal of the electric element, even when the electric element and support are separated. The support has a recess in which the excess length of electric wire is spontaneously housed when the element is brought into mounting position on the support.