10 Year Sealed Longlife Battery Operated Carbon Monoxide Alarm - Kidde K10LLCO
The Kidde K10LLCO carbon monoxide alarm features a 10 year sealed lithium battery designed to last for the life of the alarm, and is coupled with a 10 year manufacturer's warranty for peace of mind. Fully certified and Kitemarked to BS EN 50291-1, this alarm uses clear LED indicators to display Power (Green), Fault (Amber) and Alarm (Red) states. The combined test and hush button ensures easy testing and maintenance. The K10LLCO is supplied with its own baseplate, but can be installed on existing 10LLCO baseplates if replacing an older model.
- For homes, and areas with a fuel burning appliance (gas, open fires etc.)
- Product Life: 10 years
- Battery: 10 year longlife battery (sealed lithium)
- Warranty: 10 year warranty
- Slim, lightweight design suitable for free-standing or wall mounting installations
- Clear LED indicators to show the alarm status (Power / Fault / Alarm)
- 50 ppm (parts per million) of CO gas will activate the alarm's loud 85dB sounder
- Combined Test/Hush button for easy testing and maintenance
- Clear end of life warning when the alarm needs replacing
- Alarm memory feature - Red LED indicates a CO event has occurred
- Kitemarked to BS EN 50291-1: 2018, CE marked (for domestic use) and UKCA approved
- Dimensions (HxWxD): 72 x 119 x 39mm
- This alarm is suitable for both the Welsh and Scottish updated 2022 legislation
- Also suitable for new fuel-burning appliances as per Building Regulations Document J
Key Product Features
Combined test and reset button for quick and easy operation
Includes screws and mounting plate for easy wall mounting
LED indicators show power and alarm status
Loud 85dB alarm alerts occupants to the presence of deadly gas
What's Included?
The KE10LLCO CO alarm is supplied with the following components.
- 1 x Kidde K10LLCO carbon monoxide alarm
- 1 x Wall mounting backplate
- 1 x Screw set (screws & rawl plugs)
- 1 x Instruction manual
Customer Reviews (53)
Reviews by Real Customers
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
Reviewer
D R
Published on
9th April 2026
Reviewer
P J
Newly purchased, meant to have a ten year life, so can't give five stars. Ok so far.
Published on
9th April 2026
Reviewer
J B
Brilliant price
Published on
16th January 2026
Technical Data
| Product Code | KEK10LLCO |
|---|---|
| Alternative Product Codes | 10LLCO, K10LLCO |
| Brand | Kidde |
| Manufacturer's Part Number | K10LLCOBB |
| Approvals & Markings | CE Marked |
| UKCA Marked | |
| Battery Type | Sealed Lithium |
| CO Alarm Level (parts per million) | From 50ppm |
| Colour | White |
| Compliance | BS EN 50291-1 (Domestic) |
| Connection | Standalone |
| Display | LED Indicators |
| Environmental Suitability | Home |
| Fixing Options | Screws (included) |
| Wall Mounted / Freestanding | |
| Installation Position | Mount At Head Height |
| Lifespan | 10 Years |
| Local Legislation | Scottish Legislation (2022) |
| Welsh Legislation (2022) | |
| Northern Ireland Legislation (2024) | |
| Material | Plastic |
| Operating Temperature | -10°C To +40°C |
| Power Type | Battery Powered |
| Recyclable | Yes - Valpak's WEEE Distributor Take-back Scheme |
| Relative Humidity | 0% To 90% |
| Sensitivity | 50ppm (Parts Per Million) |
| Sensor Type | Electro-chemical |
| Sound Level | 85dB |
| Warning Type | Audible - Alarm Sounder |
| Warranty | 10 Years |
| Dimensions (Unit) |
|
| Weight | 132g |
| Datasheets |
10 Year Longlife Battery Optical Smoke Alarm - Kidde 10Y29
From: £14.03 inc VAT
£11.69 ex VAT
Kidde 10Y29 Optical Smoke Alarm & K10LLCO Carbon Monoxide Detector Special Offer
£35.08 inc VAT
£29.23 ex VAT
Kidde 10LLCO Carbon Monoxide Detector & 10Y29 Optical Smoke Alarm Special Offer
£35.08 inc VAT
£29.23 ex VAT
Fair price. No issues with order/payment process. Hope the '10 year' battery lasts - and that the CO1 alarm functions correctly!