Carbon Monoxide Alarm



What we think

CO is produced by the incomplete burning of fuels such as wood, charcoal, coal, heating oil, paraffin, petrol, natural gas, propane, butane etc. and by cigarette smoke. Carbon Dioxide (CO2) is the normal by-product of combustion, but if there is not enough Oxygen present Carbon Monoxide is formed instead of CO2.

Harrie Leenders

  • Accessories: Carbon Monoxide Alarm
  • Brand: Honeywell


  • In England and Wales, a CO alarm is only mandatory if a solid fuel burning appliance,
    e.g. wood or coal, is installed
  • In Northern Ireland, a CO alarm is mandatory when any type of fuel burning appliance is installed or replaced in a new or existing home
  • In Scotland from Oct 2013, a CO alarm is mandatory when any type of fuel burning appliance is installed or replaced in a new or existing home
  • A CO alarm is mandatory if a “flue in void” situation is present, where the flue cannot be adequately inspected


Certified for use in caravans and boats as well as domestic applications, the Honeywell XC70 carbon monoxide detector features a sealed long-life lithium battery, giving the detector a lifespan of 7 years. The Honeywell XC70 has an attractive, compact design and can be used as a free standing or wall mounted unit according to your requirements. The XC70 has a reduced sound level test feature, allowing you to test the detector without the full 90dB alarm sound level.

Carbon Monoxide (CO) is an invisible, odourless gas which is highly toxic to people and animals.
It is often referred to as the “Silent Killer” because it is difficult to detect as we can’t smell it, taste it or see it. The risk of Carbon Monoxide poisoning can occur at any time in any home or enclosed space. The initial symptoms, tiredness and headaches, are similar to those of influenza, which can make it difficult to diagnose.

The longer CO gas is breathed in and the higher its concentration, the worse the symptoms become including loss of balance, loss of vision and memory and eventually unconsciousness and death. This can happen within just a few minutes or hours, depending on the amount of CO
the air.

CO alarms give a full alarm, before the first symptoms occur: The higher the CO concentration, the quicker the device will give
an alarm.

Some alarms offer optional pre-alarm features, which can be used to identify faulty appliances, which leak more and more CO over time, but do
not yet trigger a full alarm or cause any symptoms.

Product Code HWXC70
Weight 0.14kg
Dimensions (HxWxD) 72x100x36mm
Sensitivity 43ppm (parts per million) CO gas
Visual Display LED indicators
Sound Output >90dB at 1m
Operating Temperature -10 °C to +45 °C
Relative Humidity (non-condensing) 25-95%
IP Rating IP44
Power Type Sealed lithium battery
Lifespan 7 years