Posted in | Level Sensors

Guided Wave Radar with Modbus RTU: GWR-2000

The GWR-2000 from BinMaster utilizes time domain reflectometry (TDR) to continuously measure the level, distance, and volume of solids or powders in tanks, bins, and silos. This sensor features a very small upper dead zone, hazardous location approvals, and assures extremely precise level measurement in low dielectric materials down to 1.3. It consists of 4-20 mA and Modbus RTU communication options, making it well-matched with PLC or HMI, as well as BinMaster’s BinView cloud-based monitoring or Binventory LAN-based software program.


  • Powders, pellets, granules, and other bulk solids
  • Food processing and ingredient silos
  • Work reliably in vessels made of cement, plastic, or steel
  • Continuous level measurement for inventory control
  • Cement and the materials used to produce it
  • Grain, animal feed, pet food, milling, or seed
  • Plastics with a dielectric down to 1.3
  • Wood pellet manufacturing centers
  • In vessels holding pigment powders
  • Lime storage and chemical manufacturing


  • Measuring distance up to 100 feet
  • Reliable accuracy within 0.08"
  • For light to heavy bulk solids
  • Can work in high dust environments
  • BinDisc simple setup and configuration
  • Virtually maintenance free
  • 4-20 mA and Modbus RTU communications
  • Immune to condensation
  • Hazardous location approvals


  • Accuracy: ±  0.08" (2 mm)
  • Measuring range: 100 ft. (30.48 m)
  • Process pressure: -14.5 to 58Ø psig-(1 to +40 bar)
  • Process temperature: -40 °F to 392 °F (-40 °C to 200 °C)
  • Power requirements: Low-voltage version: 9.6 to 48 V DC, 20 to 42 V AC, 50/60 Hz; Regular voltage version: 90 to 253 V AC, 50/60 Hz
  • Enclosure rating: IP66/IP67/IP68 dependent on housing
  • Mounting: 1-1/2" NPT opening or 3" ANSI flange
  • Housing material: Plastic, stainless steel, or aluminum
  • Output: Four-wire 4-20 mA/HART®, Two-wire 4-20 mA/HART®, Modbus RTU
  • Approvals: CSA/FM Class II, Div 2, Groups E, F, G; Other approvals can also be acquired

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