I am seeking a protractor that provides resolution of 1 second (I need degrees, minutes and seconds). I have searched the web for scientific, engineering, geometry, drafting, etc... and so far the closest I have come to it is this:
This provides a 1 minute resolution.
Do any of you know of protractor(s) that provide 1 second resolution? If yes, please give me the brand names so that I can look up the company and prices on the web.