First Alert

10-Year Battery Powered Photoelectric/Electrochemical Carbon Monoxide And Smoke Alarm

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  • Size: 5-3/4" Diameter
  • Battery Operated Photoelectric/Electrochemical Carbon Monoxide And Smoke Alarm With Test Button
  • Electrochemical Sensors Are The Most Accurate Technology Available For Detecting Carbon Monoxide
  • Photoelectric Technology Is Generally More Sensitive Than Ionization Technology At Detecting Large Particles, Which Tend To Be Produced In Greater Amounts By Smoldering Fires
  • Slim Unit, Just Over 1" In Thickness
  • Single Button Test/Silence For Simplicity
  • Loud 85dB Alarm To Assure Alarm Is Heard
  • Can Be Mounted Unobtrusively On Wall Or Ceiling Easily
  • End Of Alarm Life Signal Notifies When Alarm Needs To Be Replaced
  • Power Source: 3V Lithium Battery (installed and sealed) Can Not Be Replaced
 photo Prop 65 Warning Symbol.pngWARNING: This product can expose you to chemicals including diethylhexyl phthalate (DEHP) which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
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