GTP Automatic A, B & C Powder Fire Extinguisher 1KGThis automatic fire extinguisher will function on its own with no help from an operator. Ideal applications for these units are engine rooms, generator rooms, vehicle engine bays and most other areas where there are automated equipment operating and not usually an operator present. These units work similar to a sprinkler system where the head contains a glass vial containing a liquid. The liquid expands with the presence of heat up to around 79