A measuring device (1) with a housing (2) and two electronic devices (3, 4). To provide a measuring device whose electronics are modular, enabling easy adaptation to self-protection, the measuring device is provided with at least one encapsulated contact element (5) that is designed separately from the electronic units (3, 4) and the housing (2) and is arranged between the two electronic units (3, 4). Furthermore, the contact element (5) has at least one electronic transmission element (6) for creating an electric connection between the two electronic units (3, 4).