Sale Icon
Review Icon
Free Delivery Icon

BG SDLLSM Battery Operated Optical Smoke Alarm for Wall/Ceiling Mounting, Lithium Cell included

Model No. SDLLSM by: BG Electrical
Availability: 2 - 3 Weeks Delivery


List price £50.66
You save £40.16!
Free Delivery
(over £100+VAT, applies to zones A&B only , £6 +VAT otherwise)
Click & Collect
Order online & collect in store

This is the BG SDLLSM Battery Operated Smoke Alarm for Wall/Ceiling Mounting available at Sparks for the best price.

Note: this item is non-returnable; we are not able to take it back as "unwanted". Please make sure that this is the exact item you require before ordering.

The BG battery-operated optical smoke alarm is ideal for detecting smoke from smouldering fires whilst minimising false alarms.

BG SDLLSM Battery Operated Smoke and CO Alarm - Features

  • Easy to install. Ideal for DIY installation and locations in residential properties where it is difficult to run cables
  • End of life / low battery warning
  • The Hush function allows the alarm to be temporarily silenced
  • Test and false alarm functions
  • Alarm volume 85dB(A) at 3m
  • BSI, UKCA and CE certified
  • Constant monitoring of the air for the presence of smoke
  • Low battery mode warns you when the alarm needs replacing
  • Suitable for ceiling or wall mounting
  • The Hush function allows the alarm to be temporarily silenced
  • Test and false alarm functions
  • Sealed in lithium battery with 10-year lifespan

BG SDLLSM Battery Operated Smoke and CO Alarm - Specs

  • Standard(s): BS EN14604:2005
  • Location: ideal for installing in escape or circulation routes.
  • Dimensions: 100mm diameter, 34mm projection from the wall/ceiling
  • Detection Method: Optical
  • Battery: Sealed in 3V DC non-rechargeable lithium battery
  • Capacity: 20-40m²
  • Alarm Volume: 85dB(A) at 3m
  • Operating Temperature: 0°C to 40°C
  • Operating Humidity: <93%
  • Alarm Sensitivity: 0.123 - 0.170 dB/m
  • Alarm Silence Facility: Hush time: 5-15 minutes
  • Low Battery Silence Facility: Hush time: 10 hours
  • Interconnecting: No
  • Mounting Position: Ceiling (distance from side wall should be over 50cm), Wall (distance from ceiling 30-50cm)
  • Product Lifetime: 10 Years
  • RoHS Directive: Yes
  • WEEE Directive: Yes

Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.

Need more detailed specs?

Ask a question

Note: HTML is not translated!


Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.


We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.