Kidde Hard Wired Carbon Monoxide Alarm - 423/9HIR by Kidde

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Manufacturer Description

Kidde 4MCO Hard Wired Mains Powered 230v Co Carbon Monoxide Alarm

Ideal for new builds, re-wiring projects and property refurbishments, the Kidde 4MCO is a mains powered carbon monoxide (CO) alarm that can be interconnected by wire with the Kidde Firex smoke and heat alarms. Fitted with a rechargeable lithium back-up battery, the Kidde 4MCO has a 7 year sensor lifespan and provides a warning when the unit has reached the end of it's life. The alarm is available with or without a digital display screen.


  • Mains powered with 7 year sealed rechargeable lithium back-up battery
  • CE marked and Kite marked to BS EN52091:2010
  • Can be hard wire interconnected with the Kidde Firex range of smoke and heat alarms
  • Sensitivity level: 30ppm (parts per million) CO gas
  • Features a test/reset button for regular testing
  • Option to have standard LED or digital display
  • 7 year sensor lifespan
  • 6 year manufacturers warranty
  • Provides end of life warning when the alarm has reached the end of it's life
  • Sounds an 85dB audible alarm on activation
  • LED display indicates alarm state, power supply status and low battery
  • Digital display provides early warning of intermittent and low CO levels and shows FIRE or CO when interconnected with other Kidde alarms.


Brand: Kidde Code: 423/9HIR Hard Wired Carbon Monoxide Alarm

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