Thermo-Flo GT10 Flow Switch



  • Solid state sensor
  • Suitable for low flow detection
  • Available in short or long sensor

Thermo-Flo GT10 Flow Switch

The Thermo Flo is a general-purpose flow switch offered in liquid or gas configurations for low-flow detection. It is a great choice for a diverse range of relatively clean, non-coating media in pipe or ducting. The 1A relay provides a reliable switch interface with remote devices such as a PLC, SCADA or alarm. The short sensor is intended for use in pipe or ducting from 1/2″ to 11/2″; the long sensor is applied in 2″ and up. The liquid flow switch set point may be adjusted from 0.04 to 3 fps, and the gas flow switch from 1 to 90 fps. The clear set point adjustment knob doubles as an LED to indicate the flow status.

 Features of the Thermo-Flo GT10 Flow Switch include:

  • Adjustable set point with LED for flow or no-flow status indication
  • Polypropylene (PP) or PVDF sensor rated NEMA 4X or IP65.
  • 1A relay selectable NO or NC via power supply wiring polarity.

Suitable for usage with:

  • Deionised water
  • Sulphuric acid

Ordering More Than Five?: If your organisation requires five or more units, please contact our team of experts for a quotation.


Liquid: Clean Water, Dirty Water, Chemical

Gas: Air

Media Type: Liquids, Gases

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Product Specification

The Thermo Flo liquid or gas flow switch is offered in PP or PVDF with a relay for PLC, SCADA or alarm interface and is broadly suited for relatively clean, non-coating media in pipe or ducting.


Specification Details of the Thermo-Flo GT10 Flow Switch:

Pipe Size

DN12 – DN63 and above

Material Body


Flow Velocity

0.3 to 27 m/sec



Operating Temp Range

-40°C to 60°C

Pressure Range

0.113 – 10 bar

Outputs & Comms


Insertion / Inline


Fluid Type

Clean water, dirty water, air

Applicable Liquids



12 – 36 VDC



Connection Type


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