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  1. First Alert Battery Operated 9V Electrochemical Carbon Monoxide Alarm - Knudson Lumber Company
    First Alert Battery Operated 9V Electrochemical Carbon Monoxide Alarm SKU# 528196 UPC Code: 029054018304 $29.99/Each
    3 available
  2. First Alert Hardwired 120V Electrochemical Carbon Monoxide Alarm - Knudson Lumber Company
    First Alert Hardwired 120V Electrochemical Carbon Monoxide Alarm SKU# 407143 UPC Code: 029054856173 $44.99/Each
    1 available
  3. First Alert Plug-In 120V Electrochemical Carbon Monoxide Alarm - Knudson Lumber Company
    First Alert Plug-In 120V Electrochemical Carbon Monoxide Alarm SKU# 406945 UPC Code: 080715138007 $29.99/Each
    5 available
  4. First Alert Plug-In 120V Electrochemical Carbon Monoxide Alarm - Knudson Lumber Company
    First Alert Plug-In 120V Electrochemical Carbon Monoxide Alarm SKU# 520853 UPC Code: 029054018403 $34.99/Each
    3 available