The South NTS-332 series Total station adopts new technologies such as laser ranging, absolute coding and biaxial compensation to greatly reduce the failure rate and improve the efficiency of measurement. All relevant parts have been redesigned and improved to completely solve problems such as waterproofing, moisture-proof, and dustproof. The ranging circuit has been changed from two circuit boards to one circuit board, which improves reliability and is easy to maintain.Non-prism measurement can reach up to 1000m.