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First Alert SA300UK Ionisation Smoke Alarm & CO-FA-9B Carbon Monoxide Alarm

Discontinued Product

This product has been discontinued and is no longer available to buy.

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Product Overview

Our First Alert smoke alarm and carbon monoxide (CO) alarm special offer provides detection against both dangers at a great discounted price. The SA300UK is an ionisation smoke alarm with test button facility and a 5 year manufacturer's warranty, whilst the CO-FA-9B carbon monoxide alarm can be wall mounted or left free standing, and has a 7 year warranty.

Ionisation smoke alarm:

  • Battery powered (9v alkaline battery included)
  • Test and hush button
  • Suitable for installations complying to BS 5839-6: 2019 Grade F2
  • 5 year manufacturer's warranty
  • CE marked and Kitemarked to BS EN 14604
  • Supplied with fixings; 2 x screws and 2 x rawl plugs

Carbon monoxide alarm:

  • Battery powered (AA alkaline batteries included)
  • Test and reset button feature
  • Suitable for wall mounting or free standing
  • 7 year lifespan and manufacturer's warranty
  • CE marked and Kitemarked to BS EN 50291-1:2010+A1:2012 (domestic use) & BS EN 50291-2:2010 (camping/caravans/motor homes)
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Technical Data
Product Code 1ACODEAL1
Alternative Product Codes SA300UK, CO-FA-9B, 1ACOFA9B, 1ASA300UK
Brand First Alert
Battery Type

Smoke Alarm: 9V alkaline

CO Alarm: AA batteries


Smoke Alarm (HxDia): 37x110mm

CO Alarm (HxWxD): 67x109x38mm

Sound Output



Smoke Alarm: 5 years

CO Alarm: 7 years

Weight 0.32kg
Product Datasheets
FAQs (11)
Q. What are the regulations to testing CO detectors? Do I need to use test gas?

There is no legal or BSI requirement to test the CO detectors with a test gas. A weekly check with the test button is fully sufficient if you choose a quality CO detector. The test gas is offered as a 'belts and braces' option.

Q. Do I need an ionisation or optical smoke alarm?

We recommend using an optical smoke alarm in hallways, as these are less likely to go off because of cooking fumes from a connected kitchen. Optical smoke alarms are also ideal for living rooms, dining rooms, bedrooms, as they are good at detecting smouldering fires from soft furnishings. For landings we recommend ionisation alarms. Heat alarms are designed for kitchens and garages. No alarms should be installed in bathrooms.

Q. Can I put my smoke alarm on the wall, or must it be mounted on the ceiling?

The best location to install your smoke alarm is in the centre of the ceiling rather than on the wall. During a fire, smoke initially rises and then spreads to the sides of the room. By installing the alarm on the ceiling, this ensures that you receive the earliest possible warning of a fire.

Q. What is the best way to test my alarm?

We recommend testing alarms by pressing the test button built-in to the unit, as this is designed to simulate the detection of the target stimuli (usually smoke, heat, or CO) at the alarm sensor. You should test your alarms regularly to ensure they are protecting building occupants, preferably every week. For more detailed guidance, check the manual included with your alarm.

Q. How long do smoke alarms last before needing replacement?

It is recommended that smoke alarms are replaced after 10 years. This is because the sensors in the smoke alarms become less sensitive and may not activate when a fire is present.

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Customer Reviews

54 customers have given this product an overall rating of 4.7 out of 5

Reviews by real customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 5 / 5 Stars

Reviewed by: P B

Superb value, very fast delivery, highly delighted

Published on: 11th May 2018

Rating: 5 / 5 Stars

Reviewed by: G O

Nice looking compact detectors / alarms that work well and are great value for money at the price paid .

Published on: 11th May 2018

Rating: 5 / 5 Stars

Reviewed by: R P

First class products at a competitive price

Published on: 4th May 2018

Rating: 4 / 5 Stars

Reviewed by: M J

Arrived on time

Published on: 13th April 2018

Rating: 5 / 5 Stars

Reviewed by: M L


Published on: 4th April 2018

Rating: 5 / 5 Stars

Reviewed by: A P

Quality products, feel a sense of calm now I have them

Published on: 15th March 2018

Rating: 5 / 5 Stars

Reviewed by: J J

Excaellent Value for Money Bought these as a package. Small, neat and unobtrusive. Have recommended to friends and family.

Published on: 2nd February 2018

Rating: 4 / 5 Stars

Reviewed by: J F

Good buy

Published on: 30th November 2017

Rating: 5 / 5 Stars

Reviewed by: W H

Seems to do the job. Easy to set up and install

Published on: 17th July 2017

Rating: 4 / 5 Stars

Reviewed by: P H

Well made, reasonable price A must have for any home

Published on: 30th June 2017

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Direct Telephone 01507 464182