An assembly for detecting moisture in an absorbent article, in particular an incontinence absorbent article or an adult diaper, comprising a sensor (101) arranged for sensing moisture, and an apparatus (201) arranged for co- 5 operation with the sensor for detecting moisture. The sensor comprises at least two sensing elements (103) arranged to form a coplanar-plate capacitor. The sensor comprises a flexible substrate (102) on which the at least two sensing elements are arranged at a distance of at least 3 mm, preferably at least 5 mm, even more preferably at least 1 cm, from one another. 10
