Det-Tronics- Carrier Corporate

GT3000 Toxic Gas Detector

CSAIECExSIL 2 Certification

The Det-Tronics GT3000 line of electrochemical fixed-point toxic-gas detectors is designed and engineered to provide continuous monitoring of the atmosphere for potentially hazardous toxic gas leaks or oxygen depletion. Both explosion-proof and intrinsically safe models are available.

The GT3000 family currently includes sensors that detect each of the following gases in various concentration levels: 

  • hydrogen sulfide (H2S) - certified SIL 2 capable
  • hydrogen (H2)
  • oxygen (O2) - certified SIL 2 capable
  • 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.

FlexVu promo

In addition to being compatible with the FlexVu® Universal Display, the GT3000 is approved as a stand-alone unit and supports local calibration without the FlexVu display.


  • Hot-swappable IS sensor module for live maintenance without declassification of hazardous areas
  • Hydrophobic filter easily replaced without opening the device or use of tools
  • Suitable for outdoor applications requiring an IP66 rating
  • Magnetic switch and LEDs for user interface - also can use HART devices and FlexVu® Universal Displays for UI
  • Event and calibration logs are stored in non-volatile memory

Technical Specifications

  • Two-wire, loop-powered device for fault tolerance
  • EMI/RFI hardened (when specific model selected)
  • Electrochemical sensor cell for increased accuracy, stability and reliability
  • Sensor factory calibrated to specific gas type and target concentration level
  • Maximum loop resistance of 300 ohms at 18 Vdc, 600 ohms at 24 Vdc
  • 316 stainless steel transmitter enclosure 

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