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
- Next or named day delivery
- Named day UK delivery pre-10.30am
International delivery not available
If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 35 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.
You can return for free 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
You’ll find returns information on your delivery note. Exceptions apply to certain products - find out more about our refund policy