Derek wanted to open his own company, but was unsure of how much space he actually needed to build his building. Upon surveying the land, he found that the land area was big enough for his needs. Surveying is done to determine the land area, typically on places that are for sale, and to determine the size of a lot. Surveying equipment is extremely helpful and can allow a professional surveyor to perform their job accurately. The calculators and measuring tools are designed with durability in mind, and each piece of equipment has many functions to help accurately measure any piece of land. Land surveying is a very important part of business, and can help establish how much land you are purchasing when buying land. If you are looking for surveying equipment to add to your collection, check out the many reliable sellers on eBay. They offer a wide selection of equipment and have convenient shipping options just for you.