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The KPSI 730 is a submersible hydrostatic level transducer specifically designed to meet the rigorous environments encountered in liquid level measurement and control. It can be configured to perform to specifications under most adverse, reactive conditions. All KPSI Transducers utilize a highly accurate pressure sensor assembly specifically designed for hostile fluids and gases. The assembly is integrated with supporting electronics in a durable waterproof housing constructed of 316 stainless steel or titanium. The attached electrical cable is custom manufactured and includes paraaramid synthetic fiber members to prevent errors due to cable elongation, and a unique water block feature that self-seals in the event of accidental cuts to the cable. Each vented reference transducer is shipped with a SuperDry Vent Filter that prevents moisture from entering the vent tube for at least one year without maintenance, even in the most humid environments.  


  • ±0.10% FSO static accuracy 
  • Custom polyurethane or ETFE cable lengths
  • Welded 316SS or titanium body
  • Custom level ranges up to 700 ft. (210 m) H2O
  • Multiple analog outputs
  • Multiple nose piece styles
  • Optional lifetime lightning protection
  • Shipped with long life vent filter
  • Available molded cable seal 


  • Lift stations
  • Pump control
  • Level control
  • Surface water monitoring
  • Landfill leachate
  • Well monitoring
  • Groundwater monitoring  

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Analog Water Level Sensors

  • Type  Absolute, Gage, Sealed

Electrical Characteristics

  • Output/Span  0 – 10 V, 0 – 2.5 V, 0 – 4 V, 0 – 5 VDC, 1.5 – 7.5 V, 4 – 20 mA with Temperature Output, 4 – 20 mA

  • Supply Voltage (V) 9 – 28

  • Electrical Connection  1/2 MNPT Conduit Fitting with Gland Cable Seal, 1/2 MNPT Conduit Fitting with Overmold Cable Seal, Gland Cable Seal, Overmold Cable Seal

Body Features

  • Port Material  316 SS, FKM, Polyoxymethylene, Polyurethane, Titanium

Mechanical Attachment

  • Pressure Port/Fitting  1-2 MNPT, 1/4 18 MNPT, Open Face, Piezometer, Ported


  • Pressure Range  0 – 2 to 304 psi

  • Accuracy  ± .1% FS

  • Operating Temperature -20 – 60 °C [ -4 – 140 °F ]

  • Overpressure  2X FS


  • Options  Lightning Protection

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