This Teleinfo option PCB is only available for the RFXtrx433XL batch 4918 and later (xx19)
The batch number is on the label on the backside of the enclosure.
This Teleinfo option is pressed in the RFXtrx PCB and does not need a soldering tool. It is delivered with a cable of 1.5m which can be connected to the French power meter.
See the Software & Documentation tab or the RFXtrx User Guide for the installation instructions.