How accurate is a location measured by a handheld GPS?
The manufacturers state that the positional accuracy of a hand held unit is +/- 10 to 15 meters (95% confidence). This can improve based the type of GPS you are using, how many satellites you are locked to and the surrounding environment. Tools are provided during the workshop to assist you on how you can improve the accuracy. Generally speaking, with the right unit and conditions, the accuracy can be better than +/- 5 metres.