DF - Paddle Flow Sensor With Frequency Output

Brand: KOBOLD Instruments, Inc

The KOBOLD DF paddle-wheel flow sensor offers the variety of six material combinations, allowing the DF to be used with compatible water-based, low-viscosity liquids and many aggressive water-based chemicals. 

This flow sensor employs permanent magnets embedded within a rotating paddle wheel. A Hall-Effect sensor detects the frequency of the magnet passing and provides an output which is directly proportional to the flow rate. 

The DF is supplied as standard with an NPN pulse frequency output. 

The compact size, variety of material combinations and economical price make it the perfect flow sensor for many industrial and OEM applications.
  • ± 2.5% of Full Scale Accuracy
  • NPN Frequency Output
  • Easy to Install, No Straight Run Required
  • Rugged and Reliable
  • 6 Different Material Combinations Available
  • Made in the USA
  • Quick Delivery


Measuring Range

  • 0.02-0.14 to 1.5-36 GPM


  • 1/8” to 1-1/2” NPT Thread

Wetted Materials

  • Ni-Plated Brass
  • Polysulfone
  • PVDF
  • FKM
  • NBR
  • Stainless Steel

Maximum Pressure

  • 1450 psig

Maximum Temperature

  • 180° F


  • ± 2.5 % Full Scale

Electrical Output

  • NPN Pulse Frequency

Media Category

  • Liquid

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