The invention relates to a measuring device for outputting a measurement signal representing the difference between a first pressure and a second pressure. The measuring device comprises a first pressure transducer module (1) for outputting a sequence of first signals representing the first pressure; a second pressure transducer module (2) for generating a sequence of second signals representing the pressure; an evaluation module (3) for determining a sequence of differential values between the two pressure values and for outputting a sequence of fourth signals representing the respective difference; a first cable connection (14) between the first and the second pressure transducer module; and a second cable connection (28) between the second pressure transducer module and the evaluation module; the modules being spatially separate from each other; the second pressure transducer module (2) having an imaging unit (24) which is provided for receiving the sequences of first and second signals and for outputting, via the second cable connection (28), a sequence of third signals containing the respective pressure values to the evaluation module (3).