John Lewis SA700JL Optical Smoke Alarm

Never knowingly undersold


John Lewis
Eligible for International Delivery
Power supply
Includes 3x AAA batteries

Product information

The John Lewis SA700JL smoke alarm features optical technology to reduce false alarms caused by cooking smoke and shower steam. 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 sleeping area.

Note: This product is intended for domestic use. All John Lewis Alarms conform to regulatory requirements including EN14604.


  • Click & collect

    Click & collect from John Lewis and Waitrose shops tomorrow from 2pm
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  • Collect+

    Collect + from a local shop from tomorrow, postcode exclusions apply
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  • UK delivery

    Standard delivery within 5 working days
    Named or Saturday UK delivery
    Named day UK delivery pre-10.30am
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  • 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.

Q & As


  • 5 year guarantee included

Product code :


More than 10 in stock