Fast, accurate and efficient 502 Series total stations help speed up field work Nikon 502 Series total stations have multiple features to help you work more quickly and productively in the field. The 502 Series consists of the popular DTM-522 and the new NPL-522, which provides a prismless option. These total stations deliver a versatile, easy-to-use platform so you can get the job done right. And 502 Series total stations punch through brush better than most total stations—something you’ll appreciate when dealing with dense foliage at your survey site.

Both 502 Series models feature a Lumi-Guide tracking light above the telescope objective lens. It emits one steady and one blinking beam of coherent red light, allowing the rodman to locate the correct line quickly and easily. The Lumi-Guide also assists in one-man clearing of lines, and it works as a prism illuminator for night surveying.