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The KPSI 335 submersible level transducer provides repeatable, precision depth measurement under most adverse conditions.  Every 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. 


  • ±0.05% FSO Accuracy
  •  Custom polyurethane or ETFE cable lengths
  • Welded 316SS or titanium body
  • Multiple analog outputs
  • Custom level ranges up to 700 ft. (210 m) H2O
  • Ported nose cap
  • Optional lifetime lightning protection
  • Available molded cable seal 


  • Surface water monitoring
  • Well monitoring
  • Groundwater monitoring
  • Pump control
  • Slug tests
  • Level control
  • Ballast tank control  

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

Product Type Features

  • Sensor Type  Analog Water Level Sensors

  • Type  Gage

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

  • Supply Voltage (V) 9 – 28

  • Electrical Connection  Gland Cable Seal, Overmold Cable Seal

Body Features

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

Mechanical Attachment

  • Pressure Port/Fitting  Ported


  • Pressure Range  0 – 2 to 304 psi

  • Accuracy  ± .05% FS

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

  • Overpressure  2X FS


  • Options  Lightning Protection

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