Fixed gas detectors provide continuous monitoring of specific hazard points within an installation, alerting to flammable, toxic, refrigerant, or oxygen-deficient atmospheres before concentrations reach dangerous levels. Our range covers Zone 1, Zone 2, and non-classified area products across all major sensor technologies - catalytic, infrared, electrochemical, and PID.
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Sensitron
Sensitron SMART 3G D2
Fixed gas detector for Zone 1 hazardous areas. The Sensitron SMART 3G D2 detects flammable, toxic, VOC and refrigerant gases with a choice of catalytic, IR, electrochemical or PID sensors. ATEX and SIL2/SIL3 certified. Supplied by Insatech Marine.
Sensitron
Sensitron SMART 3G C2 LD
Fixed gas detector for Zone 1 hazardous areas with integrated data logging. The Sensitron SMART 3G C2 LD detects flammable, toxic, VOC and refrigerant gases - ATEX and SIL2/SIL3 certified. Supplied by Insatech with worldwide shipping.
Sensitron
SMART 3G C3
Fixed gas detector for Zone 2 hazardous areas. The Sensitron SMART 3G C3 detects flammable, toxic, VOC and refrigerant gases - ATEX Category 3 and SIL2/SIL3 certified. Supplied by Insatech with worldwide shipping.
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Selecting the Right Fixed Gas Detector
Fixed gas detection is not a one-size-fits-all specification. The correct detector for any installation depends on four key factors: the hazardous area classification of the space, the specific gas or gases to be detected, the sensor technology appropriate for that gas, and the certification requirements of the installation and its regulatory framework.
Hazardous area classification - Zone 0, Zone 1, or Zone 2 under the ATEX Directive - determines the minimum equipment category required. Zone 1 spaces require Category 2 detectors; Zone 2 spaces require Category 3. Non-classified areas require no ATEX certification but may still require detectors compliant with specific standards - EN 50545-1 for car parks, for example, or F-Gas Regulation compliance for refrigerant leak detection.
Sensor technology determines which gases can be detected and at what concentrations. Catalytic bead sensors detect flammable gases; infrared sensors cover CO₂, refrigerants, and flammable gases; electrochemical cells detect toxic gases and oxygen; PID sensors detect VOCs. Some applications require more than one sensor type at the same installation - a single detector platform with multiple sensor options simplifies procurement and maintenance across a multi-gas installation.
Our team can advise on all of these factors. Contact us with your installation type, zone classification, and gas hazard profile and we will recommend the right product for your specific requirements.