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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

Series 735 Flow Sensor

The Badger Meter Series 735 flow sensors feature a four bladed, rugged, non-fouling impeller. This non-magnetic sensing technology reduces drag and allows for quick changes to flow and a wide measurement range. As fluid turns the impeller, a low impedance square wave signal is transmitted with a frequency proportional to flow rate.

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  • Size Range
    12...25 mm
    1/2...1 in.
  • Temperature Range
    Up to 43 °F
    Up to 110 °F
  • Flow Range
    0.6…6 m/sec
     2…20 ft/sec
  • Pressure Range
    Up to 10 bar
    Up to 150 PSI
  • Accuracy
    ±3 %
    ±3 %
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Inexpensive option to metal tee sensors.

Signal can travel up to 2000’ between the flow sensor and the display unit or controller input without the need for amplification.

  • Non-magnetic sensing technology
  • Accurate reading
  • Flow rate and totalizer
  • PVC and irrigation models


Product Specifications

Download CSI Specifications
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  • Pressure, Temperature Ratings
    150 psig @ 22.8 °C
    75 psig @ 43.3 °C
    150 psig @ 73 °F
    75 psig @ 110 °F
  • Recommended Design Flow Range
    2…20 FPS
    2…20 FPS
  • Accuracy
    ± 3.0% of full scale over recommended design flow range
    ± 3.0% of full scale over recommended design flow range
  • Repeatability
    ± 1.5% of full scale over recommended design flow range
    ± 1.5% of full scale over recommended design flow range
  • Linearity
    ± 1.5% of full scale over recommended design flow range
    ± 1.5% of full scale over recommended design flow range
  • Transducer Excitation
    Quiescent current 600 uA @ 8…35V DC max.
    Quiescent voltage (Vhigh)
    Supply Voltage — (600 uA*Supply impedance)
    ON State (Vlow) Max. 1.2V DC @ 40 mA current limit (15W + 0.7V DC)
    Quiescent current 600 uA @ 8…35V DC max.
    Quiescent voltage (Vhigh)
    Supply Voltage — (600 uA*Supply impedance)
    ON State (Vlow) Max. 1.2V DC @ 40 mA current limit (15W + 0.7V DC)
  • Output Frequency
    3.2…200 Hz
    3.2…200 Hz
  • Output Pulse Width
    5 msec ± 25%
    5 msec ± 25%
  • Electrical Cable for IR Sensor Electronics
    UL Style 116666 copper solid AWG 18 wire w/ direct burial insulation. Rated to 105° C.
    UL Style 116666 copper solid AWG 18 wire w/ direct burial insulation. Rated to 105° C.
View all Specifications

Market Applications

  • Utility Water Treatment & Distribution

    Water and wastewater treatment facilities have the critical job of producing a safe supply of high-quality drinking water. Their operational processes are complex and involve a wide range of flow measurement tasks. These applications demand the highest flow meter accuracy and reliability, as well as long-term stability and a low cost-of-ownership. Badger Meter water treatment solutions meet the challenge and are part of our end-to-end portfolio of products for the water utility industry.

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  • Process & General Industry

    To succeed in a competitive marketplace, manufacturers must deliver the right product on time, every time, as well as capitalize on opportunities for new products, while maximizing uptime and reducing production costs. These manufacturing and processing industries worldwide depend on precise measurement and control technology flow meters. Badger Meter flow meters produce consistently reliable performance to ensure proper blending, custody transfer and signal transmission as well as compliance with international industry standard requirements. Exceptionally durable flow meters and control products help keep production up and running.

    View Solutions

Product Documentation

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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010