The MI-510 PV Module Selector (MTI.AWS.EK.510) provides x6 channels for measuring PV modules sequentially and is designed to work with the MP-160 MP-180 I-V Tracers for evaluating the long-term stability of PV modules. Up to x4 units of the MI-510 can be connected to the MP-160 and MP-180 I-V Tracers to test the long-term stability and I-V characteristics of multiple PV cells and modules.