A device that is configured to measure a plant , the device comprising: a plurality of light-section measuring devices ; a rotator configured to cause a rotation between the plant and the plurality of light-section measuring devices around a rotation axis with the axis of rotation being approximately flush with a trunk of the plant; wherein each of the plurality of light-section measuring devices is configured to generate a respective fan beam in a respective fan plane, wherein the fan planes are arranged such that the rotation axis extends within each of the fan planes and are co-planar to define a common plane ; wherein the plurality of light-section measuring devices is configured such that the fan beams are directed onto the plant from different fan directions , wherein the device comprises at least three light-section measuring devices so that a first (137-1) of the different fan directions points along a side direction onto the rotation axis which is angled with respect to the rotation axis between 60° and 120°, a second (137-2) of the different fan directions points onto the rotation axis at a first angle (α1) relative to the side direction and a third (137-3) of the different fan directions points onto the rotation axis at a second angle (α2) relative to the side direction pointing opposite to the first angle (α1) thereby reducing shadowing effects owing to leaves of the plant occluding each other, and wherein each light-section measuring device comprises a respective light-section imaging camera positioned so as to capture the plant from a capturing direction , the projection of which onto the common plane substantially coincides with a direction among the different fan directions along which the fan beams of the respective light-section measuring devices are directed onto the plant . a plurality of light-section measuring devices ; a rotator configured to cause a rotation between the plant and the plurality of light-section measuring devices around a rotation axis with the axis of rotation being approximately flush with a trunk of the plant; wherein each of the plurality of light-section measuring devices is configured to generate a respective fan beam in a respective fan plane, wherein the fan planes are arranged such that the rotation axis extends within each of the fan planes and are co-planar to define a common plane ; wherein the plurality of light-section measuring devices is configured such that the fan beams are directed onto the plant from different fan directions , wherein the device comprises at least three light-section measuring devices so that a first (137-1) of the different fan directions points along a side direction onto the rotation axis which is angled with respect to the rotation axis between 60° and 120°, a second (137-2) of the different fan directions points onto the rotation axis at a first angle (α1) relative to the side direction and a third (137-3) of the different fan directions points onto the rotation axis at a second angle (α2) relative to the side direction pointing opposite to the first angle (α1) thereby reducing shadowing effects owing to leaves of the plant occluding each other, and wherein each light-section measuring device comprises a respective light-section imaging camera positioned so as to capture the plant from a capturing direction , the projection of which onto the common plane substantially coincides with a direction among the different fan directions along which the fan beams of the respective light-section measuring devices are directed onto the plant . <EOS>