MDS, the exclusive North America distributor and service center for Schleich GmbH, will be displaying test equipment for Repair Shops, Field Service groups, Maintemeter. MDS is also. Industrial distributor for Fluke and AEMC.nance personnel, OEM, R&D and production quality control systems. This includes Surge Testers, Static and Dynamic Motor Analyzers, AC and DC HiPots, Functional Run Tester, Safety Testers and introducing the New Patent Pending Self-Calibration Portable Dynamo