Portable 3D coordinate measurement for large parts, assembly and alignment. Chotest GTS laser trackers measure over a 30, 60 or 80 m radius, with spatial accuracy of 15 µm + 6 µm/m, interferometer distance accuracy of 0.5 µm/m and 1,000 points per second. Models GTS3300, GTS3600 and GTS3800, plus the 6D-capable GTS6300, GTS6600 and GTS6800. Class 1 laser at 633 nm, IP54. Petrano Supply Inc. is an authorized distributor in Canada for Chotest.