Gps Land Surveying Instruments

Land surveying tools?

I am looking for an instrument which can measure latitude and longitude for a piece of land I visit. Is there a tool in the market, such as a GPS device or some sort of navigation tools which can show the exact coordinates of the point my car is standing?

Many are available for autos. My favorite is the Mio DigiWalker, which is portable. Model # Mio C310X is about $100 on ebay or many discount stores. There are hundreds of other brands and models.
You can find your land on Google Earth as well, and measure its boundaries precisely. There is even a street view available, if it has been recorded by cameras traveling on most streets in a lot of countries by now.