Mains Carbon Monoxide Alarm + Display & Memory0047871061037423D/9HIR

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diameter 147mm;
depth 42mm
Base diameter 144mm;
Kidde 240v Hard Wired Carbon Monoxide Alarm
+ Display & Memory
Interconnectable to Kidde hard-wired smoke & heat alarms
  • Mains powered with sealed-in, rechargeable lithium cells
    for back-up preventing tenant access
  • Electrochemical sensor sampling air every
    15 seconds safer than others sampling every 60 seconds
  • Unique Smart Interconnect allowing Kidde Fyrnetics
    hard-wired smoke, heat or CO alarms to be linked on one wiring network
  • Neat circular design can be ceiling or wall mounted
  • Product life of 7 years from initial power up and full guarantee for 6 years
  • Quickly connects with snap-on harness and unit locks in place by default
  • Easy to use test/reset buttons
  • Digital display showing the parts per million (ppm)
    when CO is detected, calculating the ppm
    and length of exposure time
  • Peak recall feature can be used to call up the
    highest level (above 30 ppm) recorded
    since the button was last pressed
  • Memory recall feature enables users to verify
    if there has been a CO incident in their
    absence which had ceased before their return
  • Display indicates "Fire" if triggered by
    interconnected smoke/heat alarm, or" CO" if
    triggered by interconnected CO alarm


Installation / User Guide Smoke Alarms Regulations
Order Code
Price (ex VAT)
Price (inc VAT)
product photo

KD 423D/9HIR

Mains Carbon Monoxide Alarm + Display & Memory