An ECG monitor comprising an electrode part 1 adapted for subcutaneous implantation and an external part 2 to be carried by a person implanted with the electrode part. The electrode part is provided with at least two electrode areas 6 for detecting an ECG signal when in use, and said electrode part 1 is connected to said external part 2 through a wireless link when in use, said wireless link being adapted for transferring data representing said detected ECG signal to said external part and being adapted for transferring power from said external part to said electrode part.
