Continuous Level Measurement

The F78MP Series air radar sensor provides non-contact, continuous level measurement for bulk materials in bins, tanks and silos. Accurate and reliable in difficult environments, the F78MP Series is an ideal level meter for powder and bulk solid inventory management. The F78MP Series air radar withstands corrosive environments and takes consistent measurements in steam, dust and other turbulent conditions.

The F78MP Series air radar measures the level of material in a bin or silo by monitoring the time it takes for an emitted microwave pulse to travel from the level meter to the surface of the material being measured and back to the meter. This time is calculated into distance which is then translated into a level measurement.

Specification Sheets:

Technical Specification

Power SupplyNominal 24 VDC with max 550 Ohm loop resistance; Max 30 VDC
Dead Zone15.7 in (400 mm) from reference point
Max Measurable Distance131 ft (40 m) or 328 ft (100 m)
Transmitting Frequency Approx78 to 79 GHz FMCW
Update TimeMaximum 10 seconds (depends on settings)
Beam Angle4 degrees
Accuracy0.2 in. (5mm) including hysteresis and non-repeatability Ambient Temperature Housing: -40º to 175º F (-40º to 80º C)
Conduit Entry1/2" NPT

Product Details


Transmitting at a frequency of 78 GHz with a narrow beam angle of 4 degrees, the F78MP Series air radar level device is consistent and accurate in difficult environments.


To receive the best results, a directional (5 degrees), or aiming flange (10 degrees) is offered on the F78MP Series air radar, which allows the unit to be directed specifically at the desired location within the vessel. A flat flange is also available.

Technology: Through-Air Radar
Applications: Non-contact, reliable in difficult environments


  • 78 GHz with a 4° beam angle for precise measuring
  • Aiming (5° or 10°) or universal flat flange options
  • Quick Start Wizard with set up in only 6 steps!

MINIMAL MAINTENANCE Built in emitter and antenna provide protection from material build-up Air purge is standard; angled vents for quick and efficient cleaning No moving parts or external parts extending into the material ENDLESS APPLICATIONS High angle of repose Dust Low dielectric Sticky Materials Internal cross-beams


Specification Sheets: