Abstract: The present invention relates to a wireless communication assembly (1) for a sensor (2) for measuring a magnitude in a motor vehicle. The sensor (2) comprises, at a first end portion (3), an element sensing (5) the magnitude to be measured in the motor vehicle and, at a second end portion (4), an electrical connector (6) electrically connected to the sensing element (5). According to the invention, the wireless communication unit (1) comprises: a transmission module (7) intended to be removably connected to the electrical connector (6) of the sensor (2), the transmission module (7) comprising means of wireless communication (8), and a receiving module at a location remote from the transmission module (7) and comprising means of wireless communication for receiving data transmitted by the transmission module (7).