Today myself and Joseph Seda from sidemounting.com got to test a game changing survey tool that cave divers can use to help with mapping the lines within a cave system. This MNemo device combined with Ariane mapping software (www.arianesline.com) does almost all the work for you, while taking away a lot of the human error you normally get doing this the old fashioned way, with a compass, pencil and slate ;) Watch this video to see it in action and for more detailed explanation checkout these pictures and descriptions media/set/?s.... Steve Martin sidemounting.com. Thank you, Sebastien Kister for creating this amazing device and software.