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Battery Optical Smoke Alarm with Escape Light - First Alert SA720CEUK

Discontinued Product

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

alternative product

FireAngel ST-623E Battery Thermoptek Smoke Alarm with Escape Light

  • Battery: 2 x AA alkaline battery powered (included)
  • Warranty: 5 year manufacturer's warranty
  • Combined smoke and heat alarm (Thermoptek)
  • Extra bright LED light to illuminates escape routes
  • Sleep Easy™ function
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS EN 14604: 2005

£13.91 inc VAT

£11.59 ex VAT

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Product Overview

The First Alert SA720CEUK is a 9V battery powered optical smoke alarm with built-in escape light, ideal for installing in bedrooms, landings and hallways. Upon activation, the smoke alarm sounds a loud 85dB warning alarm and the super bright escape light automatically illuminates, helping to light the escape route in an emergency. The SA720CEUK requires no wiring whatsoever and features a test and hush button.

  • Battery: 9V alkaline battery (included)
  • Warranty: 10 year warranty
  • Please note that First Alert are no longer manufacturing new stock for the European Market and while the products may have a 2018/19 manufacturing date they still provide a full 10 year lifespan and full warranty cover from date of purchase
  • Test and hush button feature
  • CE marked and tested to BS EN 14604
  • Suitable for installations complying to BS 5839-6: 2019 Grade F2
  • Built-in super bright escape light automatically illuminates on activation
  • Helps to illuminate your escape route from the property
  • Loud 85dB warning alarm
  • Optical smoke sensor - quick to detect slow smouldering fires
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
  • Product warranty and life commences from date of purchase
Technical Data
Product Code 1ASA720CEUK
Alternative Product Codes SA720, SA720CE, SA720CEUK
Brand First Alert
Battery Type

9V Alkaline

Dimensions (HxDia)


Operating Temperature

+5°C to +38°C

Relative Humidity

10% to 85%

Sound Output



10 years

Weight 0.32kg
Product Datasheets
FAQs (9)
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.

Q. Can a smoke alarm be fitted with a sticky adhesive pad in a let property?

The sticky pad is suitable for all battery operated smoke alarms. However, we cannot judge if battery alarms are suitable for your let property, as let properties usually require mains powered alarms. There is some advice to this in the governments guides to fire risk assessments.
Also see the LACoRS guide for let properties.

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Customer Reviews

20 customers have given this product an overall rating of 4.6 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: G C

Easy to install, good value for money.

Published on: 28th December 2020

Rating: 4 / 5 Stars

Reviewed by: S P

Promptly delivered, easy to install..hopefully will work well!

Published on: 19th December 2020

Rating: 5 / 5 Stars

Reviewed by: J R

Ideal for additional detection in new kitchen/diner area

Published on: 26th February 2018

Rating: 5 / 5 Stars

Reviewed by: M F

Have so far managed to avoid dying in a blazing inferno - would recommend! We've actually purchased this unit to act as a dust monitor in our sandblast room, if the system should develop a leak. For this it works well, and the light gives a visual warning when ear defenders are being worn.

Published on: 16th February 2018

Rating: 5 / 5 Stars

Reviewed by: p

good product had one before for about twenty years so just got another one

Published on: 15th September 2017

Rating: 5 / 5 Stars

Reviewed by: A M

Just what I ordered.

Published on: 16th May 2017

Rating: 5 / 5 Stars

Reviewed by: A M

Logic in exercise great idea to have a light with alarm

Published on: 4th May 2017

Rating: 5 / 5 Stars

Reviewed by: C M

Excellent product and fast delivery

Published on: 17th April 2017

Rating: 4 / 5 Stars

Reviewed by: J L

Have had one for years so wanted straight replacement.

Published on: 7th March 2017

Rating: 4 / 5 Stars

Reviewed by: M P

Very pleased with product

Published on: 25th February 2017

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