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.