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Minimum Order Quantity of 10 Items.
  • Usually ships in 4 weeks



  • Level Ranges up to 230ft (70m) H2O
  • SDI-12 Communication Interface
  • Welded 316 SS or Titanium Construction
  • On-board Surge Protection
  • Two year warranty
  • Accuracy:
    • Model 353/355: ±0.10%FS TEB
    • Model 351: ±0.10% of reading
  • Resolution:
    • Level; ±0.0001%FS
    • Temperature; ±0.001ºC
  • Operating Temp: -4 to 140ºF (w/polyurethane cable)
  • Protection rating: IP68, NEMA 6P


The KPSI 350 small bore submersible hydrostatic level transducer represents the leading edge of level sensing technology available today. Incorporating a highly stable media-isolated sensor, the KPSI 350 features SDI-12 serial-digital interface in a small bore transducer. SDI-12 is a standard for interfacing data recorders with microprocessor-based sensors, especially in the environmental monitoring field.

Model 353 features:

  • Range of 10 to 230ftH2O
  • Accuracy of ±0.10%FS TEB
  • Economical choice

Model 355 features:

  • For applications when high accuracy is needed
  • Range of 10 to 230ftH2O
  • High accuracy of ±0.05%FS TEB / ±0.10%FS TEB

Model 351 features:

  • Used in application when the highest accuracy is necessary
  • Highest accuracy of ±0.01ft H2O / ±0.10% of reading
  • Range of 10 to 69ftH2O

Applications include:

  • Surface water monitoring
  • Tailrace and forebay monitoring
  • Oceanographic research
  • Groundwater monitoring
  • Down hole
  • Stage monitoring


This product can be used in the following applications: