ManuFlo Flow Measurement Products

MRTU4 / 6 LCD Resettable counter and Rate flowmeters


  • 4 digit with large LCD resettable totalizer or flowrate display (20mm high)

  • 6 digit resettable (or not) totalizer with dual flowrate display

  • Total in Litres or optional Kilo-Litres

  • Flowrate in Litres/min. or optional Litres/sec.       

  • Easy reset of total via flip top lid. (where activated).                                 

  • ± 2.5% accuracy, at 0.7 - 8.0 m/s flow velocity

  • Repeatability: ± 1.0%                                            

  • Internal 3.6 v Lithium Battery (8+ year life).  

  • Max. Process Temperature 9  0 ºC.

  • Max. Ambient Temperature 55 ºC.

    • Max. Operating Pressure: PVC Tee’ options rated to 1100 kPa

               All Metal Tee options are rated 1500 kPa

  • With simple installation pipe fittings/adapters.

  • For pipe sizes from 20 to 100 mm (short stem version) or

       125 to 500mm (long stem version)

  • Optional programmable pulse output, via M12 IP67 plug set

  • Robust ABS-UV IP66 Display housing

  • Dual Hinged robust lid protects LCD from sunlight, with magnet

       secure function.

  • Slip insertion sensor design with locking cap allows simple removal  from pipeline if cleaning rotor.

  • Optional External re-calibrate via Portable Device with RFID and EWM  calibration software


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Dual Display’

6 Digit Resettable

Running Total &

5 Digit Flow Rate 


 with 50mm (2”)
 GAL Pipe Fitting

MRTU6: Ideal in Irrigation and many other general
water measurement and monitoring applications.
Incorporating the widely used RPFS sensor design.

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MRTU6 with Saddle

Clamp Fitting

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MRTU4 with PVC 
Pipe Adaptor Fitting
& Pulse output option

RPFS Insertion Paddle Wheel Flow Sensor



  • ± 2.5% accuracy @ velocity range 0.5 to 8.5 m/sec.

  • ± 1   % accuracy over linear range 0.7 to 7.0 m/sec.

  • Repeatability of ±0.6%.

  • NPN inductive pulse with internal amplification.

  • Square wave output with short circuit protection.


  • Inductive coil pulse option for low current applications.

  • High Pressure options to 2000kpa


  • 50°C or 120°C temperature models.


  • Simple installation and maintenance.

  • Large range of pipe adapter fittings in sizes 20 to 110mm.

       (Larger pipe sizes to 500mm using “Long Stem” –LS version)

  • Stainless Steel 17-4PH paddlewheel rotor without magnets.


  • Australian made since 1984. (Now with new high speed bush option).




The Rota Pulse Flow Sensor (RPFS) paddlewheel insertion type flowmeter uses a proven principle of flow measurement, which is used worldwide. The RPFS comes in four model variants:

  • RPFS-P for liquids up to   50°C (plug-in cable)

  • RPFS-H for liquids up to 120°C          

  • RPFS-L for liquids up to 120°C (Inductive pulse)

RPFS-LO for liquids up to 120°C (built in OP Amp offers ultra low current inductive pulse)


CDK Automation suppliers for ManuFlo