Laboratory instrument for quality control of solar cells and wafers. The GP STAB-TEST .Pro 2.0 has been designed for testing the mechanical stability of solar wafers and cells. Easy to change test modules offer seven different test methods to secure the quality and efficiency of modern solar cells. The system analyzes elasticity, the solar cell bow after the firing process and the adhesion force of the soldered ribbon. The innovative test modules provide easy, intuitive operation, higher accuracies and a special light coding system, which ensures a quick and reliable test sequence.