John Lewis SA700JL Optical Smoke Alarm


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
    Find out more
  • Collect+

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

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

Rated 3.7 out of 5 by 6 reviewers.
Rated 5 out of 5 by Excellent product Stylish, simple to install, loud alarm, easy battery replacement. 12 May 2015
Rated 5 out of 5 by perfect bought for pensioners and is perfect for them to hear as wanted one which doesn't go off for burnt toast 24 March 2015
Rated 5 out of 5 by does what it's supposed to had this for over a year, no fault, easy to install, about to move house so buying more for extra rooms. 19 October 2013
Rated 1 out of 5 by Faulty after a few months After a few month it started going off for no reason. We changed the batteries and it stopped working all together. John Lewis customer service was fantastic and refunded us immediately. 25 June 2012
Rated 1 out of 5 by Faulty batch? On pressing the 'test' button the alarm didn't make any sound at all, so I exchanged it for another in the shop. The second one had exactly the same fault - when I returned this one, the shop staff also tried to operate it , to no avail. They also gathered yet another one from the storeroom and this too made no sound. At this point I gave up and went elsewhere. 21 June 2012
Rated 5 out of 5 by Working well! Item was to replace an old one (of another brand) which had given up the ghost. The new one seems to be working well. Thank you. 23 November 2011
  • 2015-12-15 T15:59:39.372-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_6, tr_6
  • loc_en_US, sid_230518881, prod, sort_default
1-6 of 6


  • 5 year guarantee included

Product code :


More than 10 in stock