The disclosure relates to a base plate for an ostomy appliance, comprising: at least a first layer of an adhesive material adapted for attachment of the base plate to the skin surface of a user. The base plate further comprises a backing layer comprising a film material forming a distal and a proximal surface of the backing layer, wherein a stoma-receiving opening extending through the base plate is provided in a center portion of the base plate. The base plate further comprises a first sensor element comprising at least one sensor pair, the sensor pair comprising a first sensor and a second sensor. Each of the first sensor and the second sensor connected to a control unit interface, such that an electrical signal can be conducted between a respective sensor and the control unit interface. The first sensor element is provided between the first layer of adhesive material and the proximal surface of the backing layer. Each of the first sensor and the second sensor of the sensor pair comprises a conductor electrode and a ground electrode. The second sensor of the sensor pair is located at a greater radial distance from the stoma-receiving opening than the first sensor of the sensor pair.