In the event of a stove top fire the Guardian III electronic sensors will send a signal to the control unit circuit board automatically opening the extinguisher valve which discharges extinguishing agent through the discharge assembly and nozzles to the stovetop. After activation, the system continues to discharge agent in excess of 90 seconds while simultaneously shutting off the electricity or gas to the range. This long controlled discharge prevents splattering of hot cooking grease and ensures that all fire is completely extinguished, and that re-ignition will not occur.
All Guardian Model G300-A systems have undergone extensive Underwriters Laboratory (U.L.) fire tests and carry both U.L. and U.L.C. listings.