The present invention relates to a device for measuring an object, comprising a winder of a measurement element arranged to form a loop about said object, which has at least one wall and an exit opening arranged to allow the exit of at least one unwound portion of said measurement element, which is defined between said exit opening and a distal end of said measurement element, which is provided with a connection element that abuts against said exit opening, and a connection means being located at a distance d from said exit opening, characterised in that said connection means is located on said at least one wall, is adjacent to said exit opening, is presented in the form of a protrusion which extends towards said distal end, and is arranged to receive said connection element in a stationary manner.
