John Lewis CO400 Carbon Monoxide Alarm
Product informationThe John Lewis CO400 alarm will provide basic protection from the threat of 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 desiged 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.
- Eligible for International Delivery
- Power supply
- Includes 2x AA batteries
Click & collect
- Click & collect from John Lewis and Waitrose shops tomorrow from 2pm
- Collect + from a local shop from tomorrow, postcode exclusions apply
- Standard delivery within 5 working days
- Named or Saturday UK delivery
- Named day UK delivery pre-10.30am
International delivery not available
We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.
You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.