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10 Year Long-Life Battery Digital Carbon Monoxide Detector - Kidde 8LLDCO

Discontinued Product

This product has been discontinued.

alternative product

Kidde 10LLDCO 10yr Longlife Battery CO Alarm

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product – GUARANTEED
  • Warranty: 10 year warranty
  • Displays CO levels from 11ppm
  • Reduced sound level test feature
  • Kitemarked to BS EN50291-1 (domestic use)
  • Also suitable for both the Welsh and Scottish 2022 legislation

£21.59 inc VAT

£17.99 ex VAT

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Product Overview

The Kidde 8LLDCO long life digital CO detector uses the latest battery and sensor technology allowing Kidde to offer the first 10 year life carbon monoxide detector. Fitted with a sealed lithium battery and didgital display this model is the best and most efficient unit on the market .

  • 10 year warranty
  • Sealed long life battery providing 10 year lifespan
  • Digital display presents battery level and real time CO levels
  • Peak level feature identifies CO problems when a property is unoccupied
  • Test/Reset button
  • Loud 85dB alarm sounder
  • Detector alarms from: 30ppm (parts per million) CO gas
  • End of life notification (audible after 10 years)
  • Can be wall mounted or free standing
  • Diagnostic capabilities (by trained engineer)
  • Dimensions (HxWxD): 70x118x40mm
  • Kitemarked to EN 50291-1: 2010 and CE marked

Please note: this product has been discontinued and replaced by the Kidde 10LLDCO carbon monoxide detector.

Technical Data
Product Code KE8LLDCOUKB
Brand Kidde
Dimensions (HxWxD)


Operating Temperature

-10 °C to 40 °C

Power Source

Sealed 10 Year Long Life Battery

Power Type

Battery Operated

Relative Humidity

10% to 95% Relative Humidity


30ppm (parts per million) CO gas

Sound Output


Visual Display

Digital Display


10 Years

Weight 0.20kg
Product Datasheets
FAQs (2)
Q. Is this CO Detector compliant with all relevant standards to allow me to place it in a tenanted property as I am a landlord?

Yes, this CO alarm has been Kitemarked to EN 50291-1: 2010 and has been awarded a CE mark. It should be installed in line with the manufacturers guidance.

Q. Can you zero the peak level on a Kidde CO detector, and if so how?

The best way to make sure the system is definitely zeroed is to press an hold the peak button first. While the peak number is still showing, continue to hold the peak button then press and hold the test and reset button whilst the first button is still held down. This should visibly reset the counter. If the unit continues to display between 20-30ppm directly after this process, then this could be indicative of a fault. If it shows zero straight away after the reset, then returns to 20-30ppm the next time it is checked, this would indicate a low level of CO being present in the house. At those low levels it would not be immediately harmful, but would definitely warrant investigation as soon as possible.

Customer Reviews

40 customers have given this product an overall rating of 4.9 out of 5

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 Stars

Reviewed by:

An essential appliance Easy to install and set up. Excellent quality product, with clear display

Published on: 16th December 2014

Rating: 5 / 5 Stars

Reviewed by:

Looks nice, easy to fit, loud test alarm.

Published on: 28th November 2014

Rating: 5 / 5 Stars

Reviewed by:

Have always felt safe with Kidde alarms , great to see in an instant if there's a problem.

Published on: 28th October 2014

Rating: 5 / 5 Stars

Reviewed by:

Could'nt be simpler & good value

Published on: 9th October 2014

Rating: 5 / 5 Stars

Reviewed by:

Excellent service in terms of the alarm being received within timescale promised and subsequent monthly tester reminder service has also worked well.

Published on: 5th October 2014

Rating: 5 / 5 Stars

Reviewed by:

Safety first and great value for money I was surprised, when replacing 5 year old detector to find that now 10 year model available. Compact and neat

Published on: 18th August 2014

Rating: 4 / 5 Stars

Reviewed by:

Great alarm, easy to fit This is a good product as you never need to fit new batteries and it requires no wiring. Ideal for landlords. The bad bit (why I only rated it Good not Excellent). In my opinion the instructions are poor as regarding suitable locations for the alarm. It said do not fit this alarm in a kitchen. I needed to fit in an open plan kitchen/diner. I phoned Safelincs for guidance and they were very helpful but said they were surprised that it shouldn't be fitted in a kitchen as that flew in the face of all the information they normally rely on. I tried phoning Kidde, but their "Technical Support" comprises an answerphone that is checked twice a day! How rubbish is that? On co-bealarmed dot co dot uk it clearly advises the fitting of CO alarms in kitchens.

Published on: 6th August 2014

Rating: 5 / 5 Stars

Reviewed by:

Comprehensive monitor, easy to fit, easy to use, well priced and prompt delivery from Safelincs

Published on: 9th July 2014

Rating: 5 / 5 Stars

Reviewed by:

Bought to replace an older Kidde product and hope that it performs as well.

Published on: 23rd June 2014

Rating: 5 / 5 Stars

Reviewed by:

Peace of mind. With a gas fire in the sitting room, I am very pleased to have this product on the wall.

Published on: 20th May 2014

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