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Carbon Monoxide and Smoke Combination Alarm - First Alert SCO5UK

Discontinued Product

This product has been discontinued.

alternative product

Combination Carbon Monoxide & Smoke Alarm - Kidde 10SCO

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: 9V alkaline battery (included)
  • Warranty: 10 year warranty
  • Voice Alarm and Sounder: Different Warning Messages for Smoke and CO
  • Kitemarked to BS EN 50291-1:2010 (CO alarm for domestic use)
  • Kitemarked to BS EN 14604:2005 (smoke alarm)
  • Suitable for ceiling installation

£19.68 inc VAT

£16.40 ex VAT

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Product Overview

The SCO5UK combined optical smoke and carbon monoxide (CO) alarm from First Alert is designed to provide audible and visual warning of both dangers within a single alarm. Ideal for bedrooms, living areas and downstairs hallways, the optical smoke sensor is quick to detect slow smouldering fires, whilst the CO sensor uses advanced technology for improved detection. The SCO5UK alarm features separate LEDs and audible warnings to indicate when smoke or CO has been detected.

  • Product Lifespan: 7 years
  • Battery: 2 x AA alkaline battery (included)
  • Warranty: 7 year warranty
  • Please note that First Alert are no longer manufacturing new stock for the European Market and while the products have a 2018 manufacturing date they still provide a full 7 year lifespan and full warranty cover from date of purchase
  • Suitable for ceiling installation
  • Test and hush button feature
  • CE marked and tested to BS EN 14604 and BS EN 50291-1
  • Optical smoke and CO sensors combined within a single alarm
  • Two sensors operate independently for quick detection of both dangers
  • Less prone to nuisance alarms from cooking fumes and steam
  • Loud 85dB alarm upon activation
  • Separate LEDs and audible warnings to indicate smoke or CO detection
  • Ideal for bedrooms, living rooms or areas adjacent to the kitchen
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Product warranty and life commences from date of purchase
Technical Data
Product Code 1ASCO5UK
Alternative Product Codes SCO5UK, SCO5
Brand First Alert
Battery Type

2 x AA batteries

Dimensions (HxDia)


Operating Temperature

+4°C to +38°C

Relative Humidity

10% to 85%

Sound Output



7 years

Weight 0.32kg
Product Datasheets

Excellent Warranty

This product is supplied with a 7 year manufacturers warranty as standard

Customer Reviews

19 customers have given this product an overall rating of 4.6 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: J F

Like for like replacement units for those that had time expired. Great to be able to replace without the need for changing the holders.

Published on: 13th August 2021

Rating: 5 / 5 Stars

Reviewed by: M H

Logical instructions , easy to test and install Excellent service , well packed , prompt delivery

Published on: 20th October 2020

Rating: 5 / 5 Stars

Reviewed by: M C

Wouldn't buy anything else This is the third time I've bought this product and will continue to do so, reliable and fabulous value for money!

Published on: 22nd July 2020

Rating: 4 / 5 Stars

Reviewed by: J M

I Found the alarm very good,no problems at all I would recommend it to anyone

Published on: 11th May 2020

Rating: 4 / 5 Stars

Reviewed by: R S

Being smoke and monoxide alarm very conveinient

Published on: 29th April 2020

Rating: 4 / 5 Stars

Reviewed by: J P

It seems fine, and was easy to install (I was replacing an identical alarm and so I did not have to attach a new baseplate to the ceiling - and this fact made the fitting very easy.

Published on: 3rd December 2019

Rating: 5 / 5 Stars

Reviewed by: Y G

Product arrived on time and function as advertised

Published on: 30th November 2019

Rating: 4 / 5 Stars

Reviewed by: D W

seems to work

Published on: 16th March 2019

Rating: 5 / 5 Stars

Reviewed by:

Looks good. Does the job.

Published on: 26th January 2019

Rating: 5 / 5 Stars

Reviewed by:

Same as above

Published on: 8th January 2019

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