A device intended to be attached directly or indirectly to skin (1), comprising a first layer (2) which comprises an electrochemically active adhesive (3), said first layer having a first surface (4) which is intended to be directly or indirectly attached to the skin, as well as a second surface (5) which faces away from the first surface, a second layer (6), said second layer having a first surface (8) which is in electrical contact with the second surface of the first layer, as well as a second surface (9) which faces away from the first surface, and a kit (17, 18, 20, 21) which is directly or indirectly arranged on the second surface of the second layer.