Patent ID: 8121465

Claim:
A mobile hazard detector tester comprising: a housing including an electrical heating means, a supply means, and blowing means, the supply means arranged to supply a test medium to the heating means, wherein the heating means is arranged to heat the test medium in order to produce a flue gas, and the blowing means is adapted to provide a circulation of air in the tester and release the generated flue gas from the tester through an opening in order to perform a test on a hazard detector, wherein the tester further comprises a battery to provide power to the electrical heating means and blowing means, an accumulation chamber for at least temporarily accumulating the generated flue gas, and means for metering the volume of flue gas emitted from the accumulation chamber and supplied to the hazard detector, and at least one of the supply means, blowing means and metering means is arranged to be plugged into the housing with a positive-lock or friction-lock connection so as to be releasably attached to the housing and the supply means and blowing means are positioned within the housing.