Why use a Refractometer?
We all know that competition is fierce in the automotive service field. It seems that everyone has a repair shop, and there are many freelance repair services available, not to mention the large number of DIY’ers. As a result equipment suppliers must provide equipment that will perform exceptionally well, at a reasonable cost, with widely available distribution. In the battle for the engine coolant/antifreeze concentration and freeze point level testers today the hydrometer accounts for approximately 75% of all units sold. Refractometers and test strips account for the rest. When service personnel are asked if they feel that their engine coolant tester is performing adequately over 95% feel satisfied. Amazingly 35% feel extremely satisfied! The significance of this is that 75% of the service providers feel that their instruments need to be accurate to within 5% F. Less than one tenth of those surveyed felt that an accuracy of +/- 10% or worse was even acceptable. The curious fact about