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Model PT12


Model PT12


Seametrics’ SDI-12 Digital Submersible Water Level Transmitter


  • Measures Pressure and Temperature

  • SDI-12 v1.3 interface

  • Modbus® RTU interface

  • Optional U.S.G.S. OSW accuracy enhanced calibration on the 15 PSIG unit.

  • Available with a variety of cable options, including polyethylene, polyurethane, and FEP

  • Available in absolute and gauge versions

  • 316 stainless steel, fluoropolymer, and PTFE construction (titanium optional)

  • Optional automatic barometric compensation for absolute units using a PT12-BV Barometric Sensor (SDI-12 only)

  • Available from 1 PSI to 300 PSI

  • Optional 1/4″ NPT inlet

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The PT12 Pressure/Temperature Sensor has been designed to provide trouble-free submersible operation in liquid environments. This sensor communicates via SDI-12 (v1.3) or Modbus® RTU (RS485)protocol. Pressure/level is measured with an extremely rugged and stable piezo-electric, media isolated pressure element and compensated for temperature using our proprietary calibration methodology. Temperature is measured using an on-board digital chip.

This industry standard SDI-12 device is easy to interface with SDI-12 recorders and can be daisy-chained on one cable up to 200 feet, making it a preferred choice for many environmental professionals with existing SDI-12 systems.


  • Stainless Steel

  • Titanium

  • Cable Type: polyethylene, polyurethane, or FEP

    Cable Length: up to 500ft

  • Vented or Non-Vented Version ( Gauge/Absolute Pressure)

    Measuring Range: 1 PSI up to 300PSI

To request a quote or order this water level monitoring sensor, please specify, cable length/cable type, measuring range, material, vented or non-vented version. If you are unsure about which version is ideal for your application, give us a call.