II built the gauge and the tube in Blender 2.79, and added and rendered the materials in Terragen 4.2.10.
It took longer to prepare the old gauge, set the mesh resolution in the curves, and then use New Objects. Especially with cylinder likes TG "Nygon" not and Boolean also helps only "Remesh" to get an even distribution and then it renders well in TG.
Some screws and brackets were added and a wire for the data