John Lewis SC05 Smoke and Carbon Monoxide Alarm


John Lewis
Eligible for International Delivery
Model name / number
Power supply
Includes 2x AA batteries

Product information

The versatile John Lewis SCO5 alarm will provide basic protection from the threat of smoke and carbon monoxide. It uses a loud 85dB alarm and there’s a Test and Silent button and a low battery warning.

Where to place your alarm: One on every level of the home and one in each bedroom.

Note: This product is intended for domestic use. It is not designed to measure CO levels in compliance with Occupational Health and Safety Administration (OSHA), commercial or industrial standards. Individuals with medical conditions may consider warning devises which provide audible and visual signals for CO under 30ppm. All John Lewis Alarms conform to regulatory requirements including UL2034.


Click & collect

Free Click & collect from John Lewis or Waitrose shops for collection tomorrow from 2pm
348 participating John Lewis and Waitrose shops

Standard delivery


Next or named day delivery


Next or named morning delivery


Collect+ from a local shop from Friday - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops

International delivery not available


We want you to be happy with your purchase. If you're not, just return the products to us or to one of our shops. Unless faulty, we'd like this to be within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Depending on the type of product, you can make free returns via our shops, Royal Mail (or courier collection for large or heavy items), Collect+ or via MyHermes.

Find out more about returning products

Q & As

John Lewis SC05 Smoke and Carbon Monoxide Alarm 4.5 5 2 2
excellent item I bought this item 1 year ago and still working fine. bought 2nd one for one of my friend. 01 July 2012
Easy to install alarm Relatively compact and easy to install. Not the most attractive of designs, but guess none of them are! 25 June 2011
1-2 of 2


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Additional services

  • 5 year guarantee included

More than 10 in stock