I'm just getting back into thing,,,I have been at it for more than 35 years now..my question is simple,,,Pro and cons on both detectors...I will be hunting parks and beaches,,Saltwater mainly....If i went with the ctx 3030 it would be used as im only spending 1500 ,,,Will the nox do the job on the beach and the nox would have warranty as the used ctx will not...I just want the best I can have for beach hunting..Thx any input is much appreciated...