PT12-BV Barometric Pressure Sensor and Data Logger

SDI-12 v1.3 interface

Modbus® RTU interface


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The PT12-BV is a stand-alone digital barometric pressure sensor, manufactured by Seametrics, the PT12-BV measures barometric pressure, temperature and voltage.

The weatherproof version is ideal for barometric reference when used with absolute pressure sensors. This version features both an SDI-12 and a Modbus® RTU interface, These powerful features enhance the sensor’s capabilities to achieve connectivity with data recorders making it a preferred choice by environmental professionals with existing SDI-12 or Modbus® RTU systems.

Additionally, this sensor can be paired with a submersible pressure transducer model PT12. When this configuration is used, the PT12-BV provides automatic barometric pressure compensation, eliminating additional steps in your data management process.


  • Tube version constructed with 316 stainless steel, fluoropolymer, and PTFE (titanium available)

  • Weatherproof box version constructed with ABS – IP66/67, fluorocarbon, and Buna N (nitrile rubber)

  • SDI-12 v1.3 interface

  • Modbus® RTU interface

  • Barometrically compensate attached absolute sensor for level measurement (SDI-12 only)

  • Available with a variety of cable options—polyethylene, polyurethane, or FEP

  • Operates on low power

Ideal for use in the following applications.

  • Level measurement: barometrically compensate absolute pressure sensors

  • Measure vacuum pressure during vapor extraction pilot testing

  • Supplement aquifer test data in leaky or confined conditions

  • Accurately measure barometric pressure