Difference between GB2 and original GB?

[Desert Walker]

Whats the difference between the the 1st gen GB and the GB2? I'm shopping for my first gold prospecting MD and am on a tight budget. Figured I might find a used GB considerably cheaper but if it's much harder to use or lacks needed features I'll hold out for a GB2.
Thanks in advance....

 

[Sandman]

Here are the field tests for all three Gold Bugs. Good Luck.


http://www.losttreasure.com/content/archives/fisher-gold-bug-2

http://www.losttreasure.com/content/archives/fisher-gold-bug

http://www.losttreasure.com/content/archives/fisher-gold-bug-pro