I have been using a portable hardness tester for the past 10 years, my old unit ...
James stewart on 09/10/2013
As an engineer tasked with designing and qualifying oil and gas equipment, quali...
Anthony on 07/01/2014
Great tester very accurate results. Take heed to the fact this is not for small ...
Terry on 06/03/2014
Great product very easy to use. customer service was excellent and super fast sh...
Mike on 02/07/2015
A great, affordable, compact unit. So simple to use. The API has changed some re...
Mark on 20/05/2015