Load range matters because it directly affects indentation size, measurement accuracy, sample damage, and result repeatability. A suitable hardness tester should not be selected only by maximum force. It should be selected according to the material, thickness, surface condition, test method, accuracy requirement, and quality control workflow. For thin coatings and small parts, low-load Micro Vickers or Vickers testing is often more suitable. For routine production inspection, Rockwell testing may provide faster results. For large castings and forgings, Brinell testing can provide a more representative value. For laboratories with multiple testing needs, a wider load range or multi-method configuration may be more practical. Before purchasing, provide detailed sample information and testing requirements. This will help identify the correct load range and avoid choosing a hardness tester that is either under-configured, over-configured, or unsuitable for the real application.