Abstract: A measuring device, includes: a sensor module having a sensor compartment in which a physical-to-electrical sensor is arranged; and an electronics module, having an electronics compartment, in which a measuring device electronics is arranged. Additionally, the measuring device includes a first connecting element mounted on the electronics module and electrically connected with the measuring device electronics, and a second connecting element mounted on the sensor module and electrically connected with the sensor. Sensor module and electronics module are releasably, mechanically connected together, accompanied by formation of a connecting compartment lying between the sensor compartment and the electronics compartment, and, preferably, sealed fluid-tightly, and/or pressure-tightly, relative to a surrounding atmosphere.