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10 Year Sealed Longlife Battery Operated Carbon Monoxide Alarm - Kidde K10LLCO

KEK10LLCO - Kidde 10 Year Carbon Monoxide Alarm Front
4.7 out of 5 stars

20+ In Stock

Estimated dispatch: Tomorrow
Qty: 1

£22.49 inc VAT

£18.74 ex VAT

Qty: 2

£21.29 inc VAT

£17.74 ex VAT

Qty: 5

£19.16 inc VAT

£15.97 ex VAT

Standard Delivery

Will usually be delivered in 2-3 working days

£4.20 inc VAT

Next Day Delivery

Will usually be delivered the next working day

£7.00 inc VAT

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

KEK10LLCO - Kidde 10 Year Carbon Monoxide Alarm Closeup Button

Combined test and reset button for quick and easy operation

KEK10LLCO - Kidde 10 Year Carbon Monoxide Alarm Contents

Includes screws and mounting plate for easy wall mounting

KEK10LLCO - Kidde 10 Year Carbon Monoxide Alarm Closeup Indicators

LED indicators show power and alarm status

KEK10LLCO - Kidde 10 Year Carbon Monoxide Alarm Closeup Sounder

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
KE10LLCO Dimensions
Customer Reviews

Customer Reviews (101)

4.7 out of 5 stars

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.

Rating: 5 / 5

Reviewed by

D R

Published on

9th April 2026

Fair price. No issues with order/payment process. Hope the '10 year' battery lasts - and that the CO1 alarm functions correctly!

Rating: 4 / 5

Reviewed by

P J

Published on

9th April 2026

Newly purchased, meant to have a ten year life, so can't give five stars. Ok so far.

Rating: 5 / 5

Reviewed by

J B

Published on

16th January 2026

Brilliant price

Rating: 5 / 5

Reviewed by

J F

Published on

10th November 2025

Perfect, just the right product for the application

Easy to order and great delivery. Awesome!

Rating: 5 / 5

Reviewed by

A D

Published on

6th October 2025

Nice neat unit, not intrusive and simple to fit

FAQs

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Technical Data

Technical Data

Product Code KEK10LLCO
Brand Kidde
Battery Type Sealed Lithium
CO Alarm Level (parts per million) From 50ppm
Colour White
Local Legislation Scottish Legislation (2022)
Welsh Legislation (2022)
Northern Ireland Legislation (2024)
Approvals & Markings CE Marked
UKCA Marked
Compliance BS EN 50291-1 (Domestic)
Display LED Indicators
Fixing Options Screws (included)
Wall Mounted / Freestanding
Installation Position Mount At Head Height
Material Plastic
Operating Temperature -10°C To +40°C
Power Type Battery Powered
Relative Humidity 0% To 90%
Sound Level 85dB
Sensitivity 50ppm (Parts Per Million)
Sensor Type Electro-chemical
Warranty 10 Years
Recyclable Yes - Valpak's WEEE Distributor Take-back Scheme
Warning Type Audible - Alarm Sounder
Connection Standalone
Lifespan 10 Years
Environmental Suitability Home
Dimensions (Unit)
  • Height: 72mm
  • Width: 119mm
  • Depth: 39mm
Weight 132g
Datasheets