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OMNI Fireline® (F²) Water Meter


When you’re faced with limited vault space, the OMNI™ F² meter is ideal. We designed this meter to make maintenance easier on both fire protection and commercial water lines. The OMNI F² meter is certified, so you can be confident functionality will be there when you need it most.

The measurement principles of the F² meter assure enhanced accuracy ranges and a longer service life than any other comparable meter. It has no restrictions as to sustained flow rates within its continuous operating range.

The F² Fireline Bypass Retrofit meter can easily replace Sensus legacy W-Series compact and standard Fireline bypass meter assemblies.

OMNI meters are the most technologically advanced, large commercial water meters on the market. They provide longer service life than any other comparable meter.

All of our OMNI meters use floating ball technology (FBT). This is key to its optimal measurement performance. FBT uses an impeller with a ball design. The impeller is weightless in the water line. This feature enables the impeller to begin moving with very little water flow or force through the meter. As a result, OMNI meters have an extended flow range with greater low-flow sensitivity. They also have the ability to capture extended high-flow rates, all with virtually no wear on the meter.

Benefits to You

  • Fits in applications with limited vault space
  • Ensures quality
  • Captures more water revenue
  • Reduces maintenance costs
  • Improves customer service
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  • Meets and exceeds AWWA Standard C703 class II
  • NSF/ANSI Standard 61, Annex F and G approved
  • Underwriters Laboratories (UL) listed and Factory Mutual (FM) approved
  • Patented measurement principles yielding enhanced accuracy and a longer service life than any other comparable class meter
  • Superior construction of the main case and measuring chamber for longer life
  • One moving part allows the measuring element to operate virtually without friction or wear and extends upper and lower flow ranges capable on only the OMNI F² meter
  • Reduced head loss
  • 31-day data logging
  • Integral test port
  • Electronic register with no mechanical gearing
  • Configurable LCD display
  • Resettable totalizer for testing
  • Low battery alarm
  • Fully magnetic pickup system for meter registration
  • Sensus V-shaped, UL listed, FM approved strainer
  • Maintenance is simple, if required at all
  • Vertical and horizontal installations
  • Flanged design
  • Compatible with Sensus AMI and AMR systems
  • 10-year battery warranty


  • Sizes:
    • 4”, 6”, 8” and 10” OMNI F² meter
  • Operating Temperature:
    • Range of 33 oF (56o C) to 150o F (65.6 oC)
  • Operating Range:
    • 4”: 1.5 – 1000 GPM (0.34 – 227 m3/hr)
    • 6”: 3 – 2000 GPM (0.34 – 227 m3/hr)
    • 8”: 4 – 3500 GPM (0.91 – 795 m3/hr)
    • 10”: 5 – 5500 GPM (1.1 – 1249 m3/hr)
  • Low Flow:
    • 4”: .75 GPM (0.06 m3/hr)
    • 6”: 1.5 GPM (0.06 m3/hr)
    • 8”: 2.5 GPM (0.57 m3/hr)
    • 10”: 3.5 GPM (0.8 m3/hr)

For additional specifications, including dimensions and net weights, download the data sheet:



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