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You have received from us a Kidde carbon monoxide (chemical symbol 'CO') alarm which also contains an additional smoke alarm sensor. The main use of this alarm is to detect the poisonous carbon monoxide gas. CO gas is a by-product produced when a fuel (for example coal, wood, gas, oil) is burned at a low temperature or with insufficient oxygen. CO gas can kill! This alarm detects CO gas and will raise an alarm consisting of beeps and an English voice warning if the CO concentration is at dangerous levels. This detector, in addition, will also detect fires. The detector has different voice warnings depending on whether it has detected CO gas or a fire. Please note that this alarm is to be used in ADDITION to fire and CO detectors stipulated by your local legislation and safety standards! It does NOT replace these legally required safety measures. Please read also the instruction manual (see link at the top) as this contains important information.
Which rooms need a CO alarm
It is important to install our alarm in the room with the highest CO gas risk. Below some guidance about CO risks in a building. Please note that if you have several rooms with risks you should purchase additional CO alarms to cover these risks.
Highest Risk
Lowest Risk
Gas Boilers and Barbeques
Gas boilers can leak deadly CO gas if the flue is blocked or the boiler is not maintained. BBQs, when cooling down, also produce a lot of dangerous carbon monoxide gas.
Wood Burners and Gas / Open Fires
Wood burners and open fires can leak CO gas if the flue is blocked or is not fully sealed. They can also leak if the chimney is not pulling the flue gases correctly.
Gas Cookers and Gas Heaters
If the flame on a gas cooker or gas heater is set incorrectly, these devices can also produce CO which is then distributed freely around the room/building.
Neighbouring Properties and Enclosed Garages
Even if you do not have any fuel burning appliances in your building, CO gas can drift in from a neighbouring house or from your garage.
Gas Boilers and Barbecues
Gas boilers can leak deadly CO gas if the flue is blocked or the boiler is not maintained. BBQs, when cooling down, also produce a lot of dangerous carbon monoxide gas.
Wood burner and Gas / Open Fires
Wood burners and open fires can leak CO gas if the flue is blocked or is not fully sealed. They can also leak if the chimney is not pulling the flue gases correctly.
Gas Cookers and Gas Heaters
If the flame on a gas cooker or gas heater is set incorrectly, these devices can also produce CO which is then distributed freely around the room/building.
Neighbouring Properties and Enclosed Garages
Even if you do not have any fuel burning appliances in your building, CO gas can drift in from a neighbouring house or from your garage.
Placement within the room
Our alarm must be installed on the ceiling. Please stay away from light fittings and stay away from the edges of the room.
Do not install our alarm on the wall. Installation on the wall will delay the time it takes before the alarm will detect smoke from a fire.
Do NOT install in the kitchen
This combination CO/smoke alarm should not be installed in a kitchen, as the cooking fumes can trigger the smoke alarm sensor even when there is no fire. This would lead to nuisance alarms. If you have a high CO risk in your kitchen, please buy a separate CO alarm to protect yourself.
Step 1. Mark the fixing holes
Hold the base plate to the ceiling and using a pencil mark the the fixing holes.
Step 2. Drill the holes
Carefully drill the 2 small holes and insert the plugs provided.
Step 3. Fix the base plate
Fix the base plate to the ceiling using the screws provided.
Step 4. Attach the alarm
Attach the alarm to the base plate, twisting it into position until it locks.
Step 5. Remove the tab
Completely remove the yellow battery tab. This will automatically connect the battery.
Step 6. Press the test button
Press the test button. This will test the alarm's electronics and trigger the test sequence.
Step 7. The test sequence
A series of beeps will sound, followed by the message "Fire! Fire!" then another two series of beeps and the message "WARNING! CARBON MONOXIDE!" followed by 4 additional short beeps.
Step 8. LED indicators during normal operation
When the alarm is functioning correctly and in standby mode the front LED should flash green every 30 sec. If the LED frequency varies from this, please see the complete instruction manual.
More information about CO
If you wish to read more about carbon monoxide and the associated risks, please visit this CO information website.