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BG SDMOA Mains Operated Optical Smoke Alarm with 9V Battery Backup, Wall/Ceiling Smoke Detector

Model No. SDMOA by: BG Electrical
Availability: Usually 3-5 days


List price £79.60
You save £63.27!
Free Delivery
(over £100+VAT, applies to zones A&B only , £6 +VAT otherwise)
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Introducing the BG SDMOA Mains Operated Optical Smoke Alarm with 9V Battery Backup, Wall/Ceiling Smoke Detector 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 mains-powered optical smoke alarm is ideal for detecting smoke from smouldering

fires whilst minimising false alarms. This alarm can be interconnected with the wider range of BG interconnected alarms for complete coverage.

BG SDMOA Mains Operated Optical Smoke Alarm - Features

  • Hardwired alarms wire directly into your home electric system
  • Interconnecting: connect up to 24 heat and smoke alarms, or up to 12 alarms when including a CO alarm
  • Dust cover (included) prevents contamination of the device during installation
  • 9V battery back up ensures the alarm will operate if mains power is lost
  • Alarm volume 85dB(A) at 3m
  • Hush function allows the alarm to be temporarily silenced
  • Test function, fault and low battery warnings to assist with alarm maintenance
  • BSI, UKCA and CE certified
  • Alarm volume 85dB(A) at 3m
  • Class 2 alarm
  • Certified to BS EN 14604:2005/AC:2001, BSI Kitemark number KM 762034
  • UKCA and CE certified
  • 10-year product lifetime

BG SDMOA Mains Operated Optical Smoke Alarm - Specs

  • Standard(s): BS EN14604:2005/AC:2008
  • Ideal for installing in escape or circulation routes
  • Classification: Class 2
  • Dimensions: 133mm diameter, 46mm depth/projection from ceiling/wall
  • Mains Power: 220-240V~50Hz, 60mA
  • Battery Backup: 9V DC
  • Capacity: 20-40m²
  • Alarm Volume: 85dB(A) at 3m
  • Operating Temperature: 0°C to 40°C
  • Ambient Humidity: 5~95%
  • Alarm Sensitivity: 0.100-0.17 dB/m
  • Sound Pattern: ISO8201(BI 0.5s - pause 0.5s - BI 0.5s - pause 0.5s - BI 0.5s - pause 1.5s, with the RED LED flashing, repeat this alarm pattern)
  • Interconnecting: Connect up to 24 heat and smoke alarms, or up to 12 alarms when including a CO alarm
  • Mounting Position: Ceiling (distance from side wall should be over 50cm), Wall (min 10cm - max 30.5cm from the ceiling)
  • Wiring: Use a minimum of 1.5mm² 250V insulated wire for all wiring, including interconnecting wiring
  • Max Wiring Length: 150m between first and last alarm
  • 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.

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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.