GT3000 Toxic Gas Detector

GT3000 is SIL 2 Capable

GT3000 shown here with FlexVu® Universal Display. Click image for an expanded options view.

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The Det-Tronics GT3000 line of electrochemical fixed-point toxic-gas detectors provides continuous monitoring of the atmosphere for potentially hazardous toxic gas leaks or oxygen depletion.


The GT3000 family currently includes sensors that detect each of the following gases:

  • hydrogen sulfide (H2S) - SIL 2 Approved
  • hydrogen (H2)
  • oxygen (O2) - SIL 2 Approved
  • carbon monoxide (CO)
  • nitrogen dioxide (NO2)
  • ammonia (NH3)
  • chlorine (Cl2)
  • sulfur dioxide (SO2)

A complete GT3000 detector consists of a transmitter (GTX) and a sensor module (GTS). The transmitter generates a 4-20 mA output signal with HART that is proportional to the concentration of the target gas and corresponds directly to 0-100% full scale output.

Although compatible with the FlexVu Universal Display, the GT3000 is approved as a stand-alone unit and supports local calibration without the FlexVu display.


  • The GT3000 detectors simplify service and maintenance tasks by allowing the sensor to be changed under power without de-classification of hazardous areas and by providing easily accessible event log records via the HART communication protocol.


  • Inventory costs and technician training costs stay low because the same transmitter is used for all GT3000 detectors. Commonality of design allows users to simply attach a variety of GT3000 sensors to transmitters.


  • The GT3000 family of detectors is well suited for hazardous locations and has been tested by a third party to the Ingress Protection standard, achieving the IP66 rating.

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