CPV code 38290000 designates Surveying, hydrographic, oceanographic and hydrological instruments and appliances in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
38290000 sits under 38200000 (Geological and geophysical instruments) and groups 6 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.