RS900w Polymer Ultrasonic Flow Sensor

SKU: RS-900w

With a simple design, the RS-900w Polymer Ultrasonic flow sensor is well suited as a long-term replacement for mechanical impeller meters in cold water applications. By using ultrasonic technology to measure flow, the RS-900w flow sensor measures a wider range of flow rates without any moving parts that wear and require replacement.

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  • Features
  • Product Certifications
  • Specifications
  • Product Documentation


Badger Meter


Variable Flows. Simple Installation.


By using ultrasonic technology, the RS-900w sensor can more accurately read flow over a wider range than mechanical impeller meters, which are traditionally used in irrigation.

  • Wide Flow Range. Measuring low and high flows, these sensors capture variable flows of mixed-zone irrigation systems and seasonal variations.
  • Robust Design.  No moving parts to wear, fully potted electronics and 200 psi (13.7 bar) maximum pressure rating prolongs the sensor life.
  • Zero Straight Run. Maintains performance when installed next to the master valve or near pipe elbows.

Product Certifications

  • NSF/ANSI Standards 61 and 372 
  • CE EMC Directive 2014/30/EU


  • Size Range
    1 in., 1.5 in., and 2 in.
  • Temperature Range
    32…150 °F
  • Flow Range
    0.26…200 gpm
  • Accuracy
    ± 2% of reading
  • Power Supply
    8…28V DC
  • Pressure
    200 psi (13.7 bar)

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