The ST-750T features FireAngel's groundbreaking Thermoptek technology. When the alarm detects a rise in temperature the optical smoke detection sensor becomes extra sensitive, making it able to detect fires much faster than standard optical alarms, while at the same time reducing the risk of false alarms. Powered by a sealed Panasonic lithium battery, the ultimate in battery life reliability, there is no need to change the alarm's battery for its entire 10 year lifespan.
The alarm also has a very helpful "Sleep Easy" function which allows homeowners to silence the end-of-life chirp after ten years for 8 hours to avoid being disturbed while asleep.
FireAngel's Thermoptek smoke alarms are recommended by the UK's Fire and Rescue Service.
- Sealed Panasonic lithium battery provides ultimate reliability
- Large test / silence button for no-hassle maintenance
- feature helps provide maximum protection
- Thermally enhanced sensor for quicker reactions to fire (compared to standard optical smoke alarms)
- Reduced risk of false alarms and therefore suitable for areas adjacent to a kitchen
- temporarily silences end-of-life warning chirps for 8 hours
- Suitable for installations complying to Grade F
- Smoke alarm technology of choice for the UK's Fire and Rescue Service
- Supplied with fixings; 2 x screws and 2 x rawl plugs
- CE marked and Kitemarked to BS EN 14604
- 10 year manufacturer's warranty
- Please note: While the alarm features a red ring on the front, only a very small LED flashes red every 40 seconds to indicate that the alarm is working correctly.
This is the technical data for the 10 Year Thermally Enhanced Optical Smoke Alarm - FireAngel ST-750T.
|Alternative Product Codes
||ST-750R, ST-750Q, ST-750T
||Sealed Panasonic lithium battery
||10 year lifespan of the alarm
||85dB at 3 metres
||+4 °C to +38 °C
|Relative Humidity (non-condensing)
||Up to 90%
Q. What smoke alarm should I use in a bedroom with an en suite bathroom?
A. It is usually recommended to install an optical smoke alarm in a bedroom. This is because optical smoke alarms are slightly quicker at detecting slow smouldering fires than can original from upholstery type materials and over-heated wiring. Also, an optical smoke alarm would be less likely to sound a false alarm than what an ionisation would do if steam/water droplets were present from the bathroom. Detectors should be installed as central to the room as possible; however for your application I would also consider the position of the en suite to make sure that the detector is not in the direct path of the joining door. This is just to try and avoid the chances of a false alarm. No detector is designed for use in bathroom areas.
Q. How do I safely dispose of my old smoke alarms?
A. Safelincs is signed up to Valpak's WEEE (Waste Electrical and Electronic Equipment) Distributor Take-Back Scheme (Registration ID: 7370). Private households can therefore drop off their electronic and electrical fire safety waste at their municipal recycling centre when they are purchasing new products from us. To find your nearest recycling centre, please visit www.recycle-more.co.uk.
Q. How long do the batteries last in smoke alarms?
A. The 9V alkaline batteries last 12~18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime. Some lithium cells are also rechargeable, and when used in a mains-powered alarm may last for the entire functional lifespan of the alarm. Newer alarm models may also feature a "sealed" lithium battery. These batteries are specialist components which are designed to not be removed or need replacing by the user, and have been tested by the alarm manufacturer to ensure they last for the lifetime of the alarm.
Please Note: the actual lifetime of your batteries depends on how often the alarms are tested or activated, as sounding the alarm draws more power than when the alarms are "waiting" to detect fire. You should also read your alarm's manual to make sure you only use the recommended types and brands of batteries, as failing to follow these instructions may cause the alarm to malfunction, not alerting you in the event of a fire, and might also invalidate the warranty.
Q. Can a smoke alarm be fitted with a sticky adhesive pad in a let property?
A. 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. http://www.safelincs.co.uk/Fire-Risk-Assessment/
Also see the LACoRS guide for let properties.
Q. What sort of smoke alarm system would I need to install for a HMO?
A. BS 5839-6 recommends that one or two storey HMOs with an individual floor area of no more than 200sqm (not the total of both floors) should have a Grade D smoke alarm system installed. Grade D refers to mains powered smoke alarms with a back up battery power supply. The alarms can be interlinked either by wire or by radio signal and the system does not require a separate fire alarm panel. For HMOs of 3 storey or higher, a Grade A panel system would need to be installed. This can cover the whole of the building, or can be used just for the communal areas with a separate Grade D system installed for the individual dwellings. For both applications, the level of cover should be a minimum of LD3 (in all escape routes) but this may change according to the fire risk assessment.
Show all FAQs
Key Product Features
Large and easy-to-use test/silence button
Tamper-proof sealed Panasonic lithium battery
Unobtrusive small LED light indicates working status every 40 seconds
Screws and rawl plugs included for quick installation
- 1 x FireAngel ST-750T Thermoptek alarm
- 1 x Tamper-proof 10 year lithium battery
- 2 x Screws and rawl plugs
- 1 x Instruction manual
41 customers have rated this product and it has an overall rating of 4.7 out of 5
All our reviews are written by real customers that have purchased this product from us and are published without modification.
Reviewed by: JR
An excellent smoke detector
Easy to fit up and is effective
Published on: 22nd July 2018
Reviewed by: BR
Straightforward instructions simple as abc!!excellent product good with loud alarm
Published on: 17th July 2018
Reviewed by: EB
good product easy to put up well built
Published on: 10th July 2018
Reviewed by: NG
Easy to fit
Published on: 16th May 2018
Reviewed by: JL
Nice compact product, easy to install, very loud alarm
Great website, rapid delivery, excellent service
Published on: 14th May 2018
Reviewed by: LF
Easy to use and looks great
Published on: 12th May 2018
Reviewed by: JW
Published on: 4th May 2018
Reviewed by: CR
instruction easy to follow and works well
Published on: 19th April 2018
Reviewed by: CC
Device seems to be good, installation was easy.
Hoping that we never need this device!
Published on: 8th April 2018
Reviewed by: MR
Easy to install with clear instructions.
Published on: 31st March 2018
Reviewed by: MT
The product was exactly as described
Published on: 19th March 2018
Reviewed by: NF
Excellent Product, easy to fit
Published on: 9th March 2018
Reviewed by: RT
Great service, very good product well packaged and easy to install
Published on: 7th March 2018
Reviewed by: EB
Extra double thumbs up..
Again, very impressed with device. Decorator asked where I purchased it as he was interested for himself.
Published on: 2nd March 2018
Reviewed by: JC
very good product.
Published on: 2nd February 2018
Reviewed by: TB
Easy to fit and test, also seems efficient though stillvery new
Published on: 29th January 2018
Reviewed by: SK
Can only review ease of fitting
Published on: 21st January 2018
Reviewed by: JR
Don%u2019t know whether they work and hopefully never will. Easy to install
Published on: 16th January 2018
Reviewed by: SW
Published on: 13th January 2018
Reviewed by: GJ
Just what we wanted.
Easy to fix and seems a good product.
Published on: 11th January 2018
Reviewed by: DB
Easy to install - works as expected - look good
Published on: 8th January 2018
Reviewed by: PB
seems well made and reliable
when testing a further press does not alway turn it off first time
Published on: 31st December 2017
Reviewed by: IS
Easy to install, hopefully it never needs to work "in anger".
Published on: 16th December 2017
Reviewed by: SA
Exactly as described.
Very quick delivery and easily fitted and working.
Published on: 5th December 2017
Reviewed by: RA
Loud, would definitely wake you up!
Published on: 19th November 2017
Reviewed by: NM
Easy to fit. Looks good
Published on: 18th November 2017
Reviewed by: CC
Hoping that we never need to put it to more of a test than grilling sausages or burning toast but it does seem much less sensitive to such things than our previous alarm
Published on: 12th November 2017
Reviewed by: KL
Well made easy to operate,loud Alarm
Published on: 9th November 2017
Reviewed by: JF
Easy to assemble.
Published on: 9th November 2017
Reviewed by: AW
Easy to fit and seems reliable
Published on: 3rd November 2017
Reviewed by: KW
Published on: 29th October 2017
Reviewed by: RS
Appear good but too early to judge
Published on: 23rd October 2017
Reviewed by: MH
lovely solid design well worth buying.
Published on: 11th October 2017
Reviewed by: WP
Neat compact and fits well with easy control
Published on: 19th September 2017
Reviewed by: GD
Easy to install, reliable so far with no false alarms
Published on: 10th September 2017
Reviewed by: JH
Easy to fit and test, great buy.
Published on: 3rd September 2017
Reviewed by: ES
Easy to install and looks smart.
Published on: 28th August 2017
Reviewed by: MS
An excellent product.
Service by Safelincs is second to none.
Published on: 24th August 2017
Reviewed by: DH
stylish and easy to fit, great that we dont have to change battery. signing up to the reminders is a great idea as time is passing quicker than we were aware of. when i replace the other ordinary one it will be with one of these. will recommend for everyone
Published on: 22nd August 2017
Reviewed by: CS
Easy to install, no need to worry about batteries
I'm hoping this model won't suffer from the early battery failure which the old models did. Has already detected burning toast from the next room!
Published on: 21st August 2017
Reviewed by: MN
Good qulaity and easy to install.
Published on: 13th August 2017