Smokegard Duo Centric Chamber Model 800A8 battery compartment on the back of unit. Manufactured by Statitrol Div., Emerson Electric Co., 140 S Union Blvd, Lakewood Colorado 80228. Contains radioactive material of 1 microcurie Americium 241. Uses (6) 1.5V Alkaline batteries, Eveready E91 or Mallory MN1500.
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Statitrol Corporation, "Statitrol/Emerson Smokegard Duo Centric Chamber Model 800A8 - back" (1978). MS055-08-0001 - 0003 images. 15.
small business, smoke detectors, fire protection, fire safety