Carbon Monoxide Detector

Carbon monoxide (CO) has no colour, smell or taste, so you can't tell when it's there. It can be produced when fuels such as gas, oil, coal or wood don't burn properly, for example in a faulty boiler, gas fire, cooker or wood burner. A CO detector keeps watch so you get a warning.

This detector uses an electrochemical sensor to monitor the air continuously. If CO reaches a dangerous level, it sounds a loud alarm and flashes a red LED, and its LCD screen shows the level detected. Three status lights (OPERATE, ALARM and FAULT) let you check how it's doing at a glance.

• Electrochemical CO sensor with continuous monitoring
• Loud alarm plus flashing red LED
• LCD screen showing the detected CO level
• OPERATE, ALARM and FAULT indicator lights
• Battery powered, ceiling or wall mounting, no wiring

A CO detector warns you about carbon monoxide. It isn't a smoke alarm, and it doesn't replace having your fuel-burning appliances safely installed and regularly serviced.

Sensor type

Electrochemical

Alerts

Loud alarm, flashing red LED

Display

LCD showing detected CO level

Indicator lights

OPERATE, ALARM, FAULT

Power supply

Battery, DC 4.5 V, AA batteries (not included)

Operating temperature

5–40 °C

Operating humidity

20–90%

Mounting

Ceiling or wall, no wiring

1. 1
   Choose the room: one with a fuel-burning appliance, such as a boiler, gas fire, cooker or wood burner. Bedrooms and main living areas are also good places for extra detectors.
2. 2
   On a ceiling, fit it at least 30 cm away from any wall. On a wall, fit it higher than any door or window, but at least 15 cm below the ceiling.
3. 3
   Place it 1 to 3 metres horizontally from the appliance.
4. 4
   Fix the detector in place, then insert two AA batteries (not included), matching the + and − markings.
5. 5
   Check the OPERATE light shows it's working before you rely on it.

Avoid cupboards, spots behind curtains or furniture, directly above a cooker or sink, next to extractor fans, vents, doors or windows, and damp rooms such as bathrooms.

If the alarm sounds, act straight away:

1. 1
   Open doors and windows to let in fresh air.
2. 2
   Turn off fuel-burning appliances if it's safe to do so, and stop using them.
3. 3
   Get everyone, including pets, out of the property into fresh air.
4. 4
   Call the Gas Emergency Service on 0800 111 999, any time of day or night.
5. 5
   Get medical help if anyone feels unwell: call NHS 111, or 999 in an emergency.
6. 6
   Don't go back in or use the appliances until a Gas Safe registered engineer says it's safe.

• Check the detector every week: make sure the OPERATE light shows it's working and the FAULT light is off.
• Replace the batteries when the detector or its FAULT light indicates, and never take them out to stop a warning.
• Have gas appliances, flues and chimneys checked and serviced every year by a Gas Safe registered engineer.
• Know the signs of CO poisoning: headache, dizziness, feeling sick, tiredness, confusion, breathlessness and collapse.
• Use it within its operating range of 5–40 °C and 20–90% humidity, and keep it free of dust and paint.
• Replace the detector if the FAULT light stays on after you've fitted fresh batteries.

Every order is packed within 1–2 working days and sent with a tracking number, so you can follow it all the way to your door. Delivery is free on every UK order.

30-day money-back guarantee: if you're not happy with your order, contact us within 30 days of purchase and we'll arrange a refund. See our refund policy for details.