3 starrett.com I nnov a tive S olutions L3 Systems L3 Systems are optimized for users involved with material testing and characterization- the research engineer, the design engineer, the quality control technician, the test technician and others. L2 Plus Systems L2 Plus Systems provide engineering and quality personnel with an easy-to-use, yet comprehensive solution for complex force analysis and measurement. L2 Systems L2 Systems are ideal for demanding force measurement testing. Create complex testing methods or use our standard test templates for all types of force measurement applications. S2 Systems S2 Systems are application-specific solutions for testing compression and extension springs. Measure spring rate, spring constant, initial tension, free length and more.- fast and efficiently. Crea te. Test. Analyze. Report.