Featuring TDR (Time Domain Reflectometry) technology, the Tek-Flex 4100A Explosion Proof Guided Wave Radar Level Transmitter provides continuous level measurement in liquids, solids, and slurries. This innovative device has almost no installation restrictions in tanks, silos, and bins up to 65 feet in height. The Tek-Flex 4100A has a fully isolated 4-20 mA output that can be scaled for tank level or distance. The unit requires 18 to 30 VDC power. The Tek-Flex 4100A is shipped precisely pre-calibrated for the customer’s application and thus ensures quick installation and setup. TDR technology is not affected by pressure, vacuum, temperature, viscosity, foam, or dust. Changes in dielectric constants or coating of the probe do not affect the level measurement, due to the dynamic sensing technology programmed into the artificial intelligence of the Tek-Flex 4100A level transmitter.


  • Continuous level measurement in process or storage tanks, reactors, and pressure vessels.
  • Precisely measures liquids, slurries, and solids level.
  • Robust design.
  • Highly accurate and reliable.
  • High-end guided radar.
  • Measuring distance up to 60m.
  • 2-wire guided radar level transmitter based on the Time Domain Reflectometry (TDR) technology.
  • Cost-effective and maintenance-free.
  • Rotatable and removable transmitter.
  • Stainless Steel housing for corrosive environment.
  • Suitable for liquid storage and process applications.
  • Pre-calibrated from factory for easy installation.
  • Programmable fail safe mode.
  • Markets