2-wire Guided Radar (TDR) Level Meter This device is a TDR Level Meter for measuring distance, level, volume and mass. Its modular design makes it an economical and reliable solution for common applications. - Modular design of housing and probe ensures suitability for a variety of mounting positions and applications - Universal measurement device for liquids and solids - SIL2-compliant according to IEC 61508 for safety-related systems