A system for analyzing at least one analyte in a fluid sample, the system comprising: a first enclosure incorporating a heated fluid sample take-off probe , a heated pressure regulator connected to said take-off probe , a heater for heating the take-off probe and the pressure regulator and a flow conditioner for conditioning samples from a sample source and for generating a conditioned vaporized sample from the fluid, and a conditioned sample output; a second enclosure operably connected to the first enclosure , said second enclosure including a conditioned sample input and an electrically powered field-type process gas chromatograph for providing a signal output representative of the vaporized sample composition; characterized by : vacuum jacketed tubing for communicating said conditioned vaporized sample between said first and second enclosure in a manner to maintain thermal and flow rate stasis of the vaporized sample during transit, and a third enclosure including a power control center , a photovoltaic panel , deep cycling battery-type energy storage cells connected to said photovoltaic panel and to said power control center , and a communication containing module configurated for transmitting to and receiving data from a remote control center, said third enclosure configured for providing operating power to the first and second enclosures and receiving said signal from the gas chromatograph . a first enclosure incorporating a heated fluid sample take-off probe , a heated pressure regulator connected to said take-off probe , a heater for heating the take-off probe and the pressure regulator and a flow conditioner for conditioning samples from a sample source and for generating a conditioned vaporized sample from the fluid, and a conditioned sample output; a second enclosure operably connected to the first enclosure , said second enclosure including a conditioned sample input and an electrically powered field-type process gas chromatograph for providing a signal output representative of the vaporized sample composition; characterized by : vacuum jacketed tubing for communicating said conditioned vaporized sample between said first and second enclosure in a manner to maintain thermal and flow rate stasis of the vaporized sample during transit, and a third enclosure including a power control center , a photovoltaic panel , deep cycling battery-type energy storage cells connected to said photovoltaic panel and to said power control center , and a communication containing module configurated for transmitting to and receiving data from a remote control center, said third enclosure configured for providing operating power to the first and second enclosures and receiving said signal from the gas chromatograph . vacuum jacketed tubing for communicating said conditioned vaporized sample between said first and second enclosure in a manner to maintain thermal and flow rate stasis of the vaporized sample during transit, and a third enclosure including a power control center , a photovoltaic panel , deep cycling battery-type energy storage cells connected to said photovoltaic panel and to said power control center , and a communication containing module configurated for transmitting to and receiving data from a remote control center, said third enclosure configured for providing operating power to the first and second enclosures and receiving said signal from the gas chromatograph . <EOS>