Device for the determination of relative heights (h) between two points, with • a connecting hose filled with a liquid, with two opposite ends (3, 3'), • a first and a second pressure sensor (4, 4'), arranged at the opposite ends of the connecting hose, wherein the pressure sensors are connected to one another via the liquid and the liquid is sealed from the outside in a gastight manner by the connecting hose, and wherein the first pressure sensor is configured to measure a hydrostatic pressure of the liquid at the one end of the connecting hose in the liquid and the second pressure sensor is configured to measure a hydrostatic pressure of the liquid at the other end of the connecting hose that is opposite to the one end, in the liquid, and • a processor that is configured to determine a relative height between a first reference point (5, 5') with a fixed positional relationship to the first pressure sensor and a second reference point (6, 6') with a fixed positional relationship to the second pressure sensor on the basis of the hydrostatic pressures measured by the first and second pressure sensors, wherein the measured hydrostatic pressures can be assigned by the processor to the same common measurement time point, and the determination of the relative height (h) takes place on that basis, characterized by further pressure sensors (27, 27', 28, 28', 28", 29, 29', 29'', 29′′′) at each end of the connecting hose (3, 3'), wherein the pressure sensors at the respective end of the connecting hose (3, 3') are arranged around a common centre point and have a fixed positional relationship to one another, and in that the processor is configured ∘ to determine the relative height (h) on the basis of mean values of the pressures measured by means of the pressure sensors at the respective end of the connecting hose, and/or ∘ to determine a location of the respective end of the connecting hose in relation to a reference point (5, 5', 6, 6') on the basis of the pressures measured at the respective end of the connecting hose by means of the pressure sensors, in particular pressure differences, and also to determine the relative height (h) on the basis of the location. • a connecting hose filled with a liquid, with two opposite ends (3, 3'), • a first and a second pressure sensor (4, 4'), arranged at the opposite ends of the connecting hose, wherein the pressure sensors are connected to one another via the liquid and the liquid is sealed from the outside in a gastight manner by the connecting hose, and wherein the first pressure sensor is configured to measure a hydrostatic pressure of the liquid at the one end of the connecting hose in the liquid and the second pressure sensor is configured to measure a hydrostatic pressure of the liquid at the other end of the connecting hose that is opposite to the one end, in the liquid, and • a processor that is configured to determine a relative height between a first reference point (5, 5') with a fixed positional relationship to the first pressure sensor and a second reference point (6, 6') with a fixed positional relationship to the second pressure sensor on the basis of the hydrostatic pressures measured by the first and second pressure sensors, wherein the measured hydrostatic pressures can be assigned by the processor to the same common measurement time point, and the determination of the relative height (h) takes place on that basis, ∘ to determine the relative height (h) on the basis of mean values of the pressures measured by means of the pressure sensors at the respective end of the connecting hose, and/or ∘ to determine a location of the respective end of the connecting hose in relation to a reference point (5, 5', 6, 6') on the basis of the pressures measured at the respective end of the connecting hose by means of the pressure sensors, in particular pressure differences, and also to determine the relative height (h) on the basis of the location.