Abstract: A sensor patch for attachment to a base plate for an ostomy appliance, the sensor patch having a distal side and an adhesive proximal side, the distal side being adapted for attachment to an adhesive surface of the base plate, wherein the adhesive surface of the base plate is adapted for attachment of the base plate to the skin surface of a user. The sensor patch is provided with a first (100) and a second (150) release liner that are arranged in a way that is nudging the user to release the first release liner first and thereby secure correct application of the sensor patch to the base plate.