The Optiflex 1100 C level meter for liquids and solids in non-explosive environments is two-wire, loop-powered and available with a standard 20-m cable or segmented coaxial probe for liquids and a 10-m cable probe for solids. It uses TDR (time domain reflectometry) technology, does not need any wet calibration, is immune to linearity problems in irregular tank shapes, and has neither fragile nor moving parts.
