Device (10) with a lifting device (12) and a localisation device (18),where the locator device (18) has a control (24), several anchors (22a-22f) and at least one marker (20a-20c),where the control (24) is designed to determine the position of at least one marker (20a-20c) by means of a maturity determination of ultra-wideband signals with a frequency of more than 1,5 GHz between the marker (20a-20c) and the anchor (22a-22f), where the lifting device (12) has a movable free end (16) and has at least one marker (20a-20c) in the range of that free end (16).
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