A fire-fighting piercing nozzle device having two chambers for extinguishing and monitoring fires within a storage unit. The fire-fighting piercing nozzle device includes a dispensing system for dispensing fire-fighting materials onto a fire, a temperature measuring system for measuring the temperature within a storage unit to determine the location of a fire, and a combustion gas extraction system for extracting a sample of combustible gas from a storage unit to determine the location of a fire or to determine whether the fire has been properly extinguished. The fire-fighting piercing nozzle device includes a nozzle tip, a plurality of extenders (if necessary), and a head connector.