A negative pressure therapy apparatus, comprising: a porous pad (1); a source of reduced pressure (103); a container (6) positioned between the source of reduced pressure (103) and the porous pad (1); and an elongate body (2) linking the porous pad (1) and the container (6), the elongate body (2) including: a first section (11) having a separable and non-interchangeable part coupled to a separable and non-interchangeable part of a second section (12) of the elongate body (2); and the second section (12) of the elongate body (2) defining a first lumen and a second lumen, the second lumen being adapted to sense a pressure at a wound.