Described is a hand-held measuring device 1 for measuring the pH value of wounds at a measuring point, wherein the hand-held measuring device 1 comprises a housing 2, a removable protective case 5 which at least partially encloses the housing 2, and a detection and evaluation unit constructed of at least two elements 6, 7, 9. The evaluation unit is designed to process the measured signals detected by the detection unit. At least one element 7 of the detection and evaluation unit is arranged in or on the housing 2 and at least one element 6, 9 of the detection and evaluation unit is designed as a component of the protective case 5.
