Well you have to know what quality parameters you need to look at and what the appropriate deviation is for that quality parameter before you start looking at equipment. Then you chose equipment that will test what you need tested within the appropriate level of deviation. So only you can really decide what information you need and if a piece of equipment is going to give you the results you can interpret.
You need to look at the literature available for the product and see if it tests parameters that you need checked be it moisture, ash, protein, etc.
Also you have to find out from the company if it will work with your type of material. Something that is certified for wheat, for example, may not be certified for flour, bran or germ. Also find out if they are certified by an accreditation body for testing your material.
Edited by Mr. Incognito, 04 December 2014 - 03:12 PM.