Angle Levels?

I am seeking a recommendation for a good angle level or other tool to help me better fine-tune my bike fit angles. Can anyone recommend such a tool? I have seen them at certain FIST certified bike shops but don’t know what they are called. Thanks.

For measuring your own angles, you want a goniometer. I like the gollehon extendable one ($50):

http://froogle.google.com/froogle_cluster?q=extendable+goniometer&oid=16512923398386018978&btnG=Search+Froogle&scoring=p

awesome- thanks; thats what i was looking for
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