FireAngel ST-750T Thermoptek Smoke Alarm
ST-750
Simple to install and easy to test and silence, the ST-750 smoke alarm is designed to alert the household to the presence of smoke and provide precious time to escape.
10 Year Thermoptek Smoke Alarm ST-750
Using the sensing technology of choice for the UK’s Fire and Rescue Service, the FireAngel ST-750 is a sealed 10 year battery powered Thermoptek smoke alarm with improved detection of slow-smouldering fires. It’s handy “sleep-easy” function allows the smoke alarm to be temporarily silenced for 8 hours.
Positioning: Bedroom | Living room | Hallway | Landing | Dining room
- Tamper-proof 10 year sealed battery powered alarm
- Thermoptek optical smoke sensor – Detects slow-smouldering fires
- Smart Silence – Silence false alarms
- Toast Proof – Reduces nuisance alarms
- Certified to BS EN14604:2005
| | | |
|---|---|---|
ThermoptekOur unique technology – Thermoptek Multi-Sensor technology combines the very latest in optical sensing with a thermal enhancement. It constantly monitors for temperature change and if a sudden temperature rise is detected the sensitivity of the alarm is increased. | Precision Multi-sensorOptical and heat detection technologies combine to increase the sensitivity of the alarm for a faster response. This provides a much faster reaction to both slow smouldering and fast-flaming fires in a single alarm. | UK Fire And Rescue ServicesWe are leading the way in fire safety with state of the art design and technology to deliver the most reliable, efficient and desirable home safety solutions, FireAngel products are used by over 90% of UK Fire and Rescue Services. |
 |  |  |  |  | |
|---|---|---|---|---|---|
| 5 Year replaceable batteries included | ✓ | ✓ | |||
| 10 year sealed for life battery | ✓ | ✓ | |||
| 1 year 9V replaceable battery included | ✓ | ||||
| Thermoptek optical smoke sensor | ✓ | ✓ | ✓ | ✓ | |
| Optical sensor | ✓ | ||||
| Test and hush button | ✓ | ✓ | ✓ | ✓ | ✓ |
| Toast proof – reduces false alarms | ✓ | ✓ | ✓ | ✓ | ✓ |
| Certified to BS EN14604:2005 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 85dB sound | ✓ | ✓ | ✓ | ✓ | ✓ |
| Weight: | 10 g |
| Dimensions: | 13 x 13 x 3.4 cm; 10 Grams |
| Model: | ST-750T |
| Part: | ST-750T |
| Colour: | White |
| Pack Quantity: | 1 |
| Batteries Required: | No |
| Batteries Included: | Lithium Ion |
| Manufacture: | FireAngel Safety Technology Limited |
| Colour: | White |
| Quantity: | 1 |
Easy to install great battery life good value for money
Needed an extra alarm for the outside storage shed. This fits the bill
I bought this one to replace a similar one fitted by by the Fire Brigade over 10 years ago. It has a 10 year battery life which is activated when you put into the base and twist it. As far as installation goes it fitted into the existing base no problems at all. The existing base was attached to the ceiling using two small screws directly in the plasterboard, so not much effort required. You can easy test this by pressing the button in the centre. I tried it before I placed it in the base and it didn’t work, which proved to me that that the battery was not being drained on the shelf.
This was an easy like for like replacement of existing detector with flat battery.
This was to replace an older version that was past its expiry date. I assume it will work!
My first smoke alarm battery only worked for 18 month’s and I have had to replace with new device.
Great piece of safety kit very easy to install with a long battery life at a competitive price. Also recommended by my local Fire Brigade !
Bought this particular item as a same direct replacement for one recommended and originally fitted by the regular fire officers home safety team. Works well.
I’ve used these for years and the battery lasts 10 years based on my experience
Battery is suppose to be good for 10 years, the old one has been in place less than 5 years! Did not come from Amazon so hoping this one will last a bit longer. Really easy to put up.
Nice small unit , has small red led flashing every 60 seconds to tell you its working, when it went off after burning dinner , press the mute button and it was silent, resets in a few minutes by its self and red light flashing to tell you its still on, for piece of mind, I did not want a cheaper or less known brand. Fire Angel is what the local Fire Service would fit if asked so that’s good enough for me.
Discovered these alarms years ago through a fireman friend. The only smoke alarms I trust. Super easy to install (I have zero DIY skills) I still test them once a month and brought this to replace my last one which I’d had for over 8 years. I sleep easier knowing I have these installed at home.
Easy to install, easy to use and good on the eye. Great service and vfm. Thank you
They work, leastwise in testing! Attractive and relatively easy to install
Easy to fit. Looks good and long lasting battery is a bonus. Fitted 2 in halfway one downstairs and one on landing upstairs.
Fitted directly on to existing ceiling fixing as originaly supplied by local fire brigade. Exellent vfm
Bought as a replacement but difficult to assess so soon, however the original was good so hopefully this will be as well.
Easy to install, long battery life giving peace of mind!
Does the job, it didn’t go off once whilst making a curry.
Easy to fit , battery life is an unknown but i suspect it will be satisfactory , certainly value for money if it keeps you safe .
Replacement for an alarm which had developed a fault, and was triggering at random, for no reason. I like the simply turn and click fitting to the base, and the 10 year battery life means no balancing on a chair to fit new 9v batteries! The instructions were simple, and I hadn’t seen the ‘300mm from a light instruction’ before. I wonder if the 50hz flicker from an LED upsets the alarm?
Fitted and working in less than 10 minutes
It gives me peace of mind if there is a fire It will help to save our lives
Quality product at quality price recommend it to anyone old one started bleeping after 5 years had no problem with best product on the market.
These are the same models that the fire service fit so what’s not to like. Good loud sound and are now fitted in most rooms.
Great product from a trusted name. 10 year guarantee 10 year battery life. No option to replace the battery unit has to be completely replaced one battery exhausted
I liked the clear instructions and overall design . Doesn’t go off for toast burning .easy stop button. Overall very pleased.
Quick and easy to install. Tested a few times since I installed it, and is working fine. The test chime is very loud, I’m guessing the same volume as a real alarm. I’ve taken to wearing headphones to reduce the volume a little when I test it.
Easy to install in place of a much earlier model. Seems to do the job.
This was to replace same make but different model, This slightly up grade.
Not tested safety function to the full -works fine on test button.
Not so certain on battery life – previous one didn’t last the quoted battery life.
It is easy to install, reliable and can be silenced and battery for 10 years, it is pretty good value and works.
I am getting some more. Probably the best home fire alarm available at the moment at under 15
I paid 12
Just the smoke alarm from Fireangel that’s easy to test and install!
Seems to be fine, but no fires yet to test it. Important to follow the instructions for regular cleaning! Only needs a quick application of a vacuum cleaner every so often, but I ignored this for several months and the alarm eventually went off one night. Presumably some dust or insect got in through the venting holes. After cleaning the unit is now back in order , seemingly without any continuing problem.
What a fantastic idea sticking magnets to the ceiling! It is out of the box and on the ceiling in a matter of seconds. Works well, not oversensitive but definitely working. It went off one evening so I whipped it off the ceiling and on my way out of the room it slipped and I flung it across the room (with some force!) by mistake. It came apart and I couldn’t figure out how to put it back together again. Bought another one as I was so happy with the first.
Note that it is not a fragile item, I just flung it pretty hard. Wouldn’t have a problem buying ten of these.
Just pop it up and away you go. No need to worry about replacing the battery. Is very loud and has not gone off with oven or toaster on so it’s a real improvement from my last one.
I am using it to keep me alive in a fire.
Bought to replace out 9f date model. Very good, doesn’t look bad when put up. Good alarm sound on testing.
Was a replacement for a previous one and was fully compatible with the base so literally one off one on. Took me all of two minutes to install.
It looks great and easy to install love the accidental button on it how many times have we all open the oven and it’s set the smoke alarm off.
Fits onto bracket for 622 model. Looks nicer than model being replaced and peace of mind with a 10 year sealed battery
Never had fire alarm before never thought I needed one, but was easy to install and very loud
All as described great value well respected brand would also recommend the magnetic base plates for ease of fitting very happy with item
The smoke alarm was very simple to install. Very loud when tested too! So easy to make sure you and your family are safer – a definite must have for every home.
Our old smoke alarm started beeping because it needed a new battery and when I looked at it I decided that it could do with being replaced. We have had fire angel products before (a carbon monoxide detector) which we are very happy with. So when I looked on amazon I leaned towards the brand I knew and bought this.
It was very easy to install and works a treat, just don’t forget to test it periodically!
Arrived promptly and I found them very easy to install using a strong double sided tape. Having long lasting batteries means they only need testing regularly and I am very happy I bought them.
Nice compact device and modern looking very easy to install can’t comment on battery life as it’s new all is great I recommend this
Hopefully I will never know if they work. Test button does. Easy to fit, as good looking as a smoke detector can get. No idea on battery life, instructions say 10 years – ask me the
Well made product, clear audio alarm,indicator light and easy to install.
great item you cant beat FireAngel at keeping those you love safe
There are many smoke alarms of course, but the thing about this one is that it looks a lot better than the average white plastic disc. Tests out OK, as it should, and the gloss finish with red circle looks good on the ceiling. No more expensive than average. Note that this is an honest review – I paid full price for this alarm and am not associated with the supplier in any way.
Not had any fires, so unable to say how effective it is, but was recommended by the Fire Services, so confident it’s going to do the job
Once you accept you need to replace these every 10 years – no great deal lets face it – then everything about this pack is 5 star. I re bought 10 years later – and the new ones simply twisted and snapped back into the fitting installed 10 years ago! Recommended
Already had the same alarms fitted ,no need to change the base plate straight swap,hopefully the battery life will be the same as the last ,no false alarms when toasting.
It is perpect for our apartment just neat for the wall ,Thankyou mrs j Travis
As I have been only using it from a weeks time so I can’t really comment on battery life. But it does show expiry date on rear side of it, so I believe it should be covered by a warranty. But it has passed the initial testing and working fine.
They are really easy to install if you know how to operate drill and make to small holes in ceiling. Design is very good and look flat, slim and tidy on ceiling. Overall I am happy so far.
Very small unit, so small in fact, I now have to paint over the space my older unit left.
They appear to be very sensitive, but will withstand the burnt toast dramas.
I can’t comment on the battery life as I haven’t had the alarms for very long, but I’m sure they’ll be fine.
I’m satisfied that the alarms work properly, when they go off, I doubt anybody would be able to sleep through that racket, which is good to know.
I think they’re really reasonable for a set of two, after all, what price can you put on the safety of your family.
Just don’t let the wife burn the dinner else you’ll go deaf
Very easy to install and test. Makes a loud enough noise though ours outside the bathroom and sometimes the shower activates it.
Good quality and easy to install, clips straight onto the base. Easy! Best price too!
eally good product, easy to install, works well loud alarm so good for elderly mothe
Have used this product for many years. Does the job well but tend to get 3-4 years battery life only. I am happy with that …..
Easy to install as fitted on old backplane.
Check first with company and happy with quick reply
This was an Amazon Deal, So was very good Value.
Has a built in Battery, Which should last 10 years, as stated on the label on the back of the Alarm.
Very easy to install, screws are included, And comes with instructions for the best place to install.
I found the sound is loud, Easy to hear at the top of the stairs.
The face of the alarm is simple: one big button and one flashing light, unlike some that have multiple buttons for different purposes. There is a single LED that flashes every 40 seconds to show it is operational; I have yet to see how bright this appears at night, so I’ve not yet put up the one for my bedroom.
Incredibly simple to put up; with two long slots in the base plate at 90 degrees to each other, it doesn’t matter if your two screws don’t go in exactly where you planned! and it means you can rotate the base plate a little if you want the face of the alarm aligned in a particular direction.
I gave 5 stars for “battery life” on the basis that the battery is meant to last 10 years, which is a big bonus – no additional expenditure on an expensive 9V battery (or whatever) every two years. Obviously I’ll only be able to comment on actual battery life in 2029!
I was spending 10 ten years ago on basic smoke alarms, so this one is ace value, having a thermoptek ‘heat & optical’ sensor. The ‘end of life’ silence facility is an added bonus, so you aren’t driven bonkers by the thing chirruping all night! (nor have to take it down and de-activate it) – it will keep protecting you for up to another 7 days, until you have been able to replace it. Brilliant!
I have now have 4 of these around my home ,Ilike the fact you can fit and forget without having to replace the batteries all the time .These have gone off a couple of times and have a very loud alarm but I love the big button in the middle that allows you to silence it when needed although the cooking in the house rarely sets it off unlike my old smoke alarms. The design is very minimal and you dont notice them much on the ceiling as the profile is low and they blend in easily.
These were also very easily fitted ith the screws supplied , I just screwed direcly into the plasterboard
Great design, easy to install, easy to test and a10-year battery. It’s much better than the turd that was installed before.
Not a lot to say about a smoke alarm.
Fire Angel are a well known brand, infact our local fire service fit them free to qualifying homes.
Easy to fit. Doesn’t look ugly. 10 year battery after which you’ll need to replace the whole unit but I believe it’s recommended to do this anyway.
I’ve installed this combined optical and thermal smoke alarm on a bedroom ceiling. The red ring and writing are a little prominent for my liking (who wants a smoke alarm to draw any attention to itself, other than in a fire?!), but aren’t too outrageous. Installation was a doddle thanks to the sensibly sized breakout slots for the screws which provide plenty of tolerance for the screw holes (unlike a BRK model I also fitted, which demanded precision drilling). The alarm seems to be working fine. It flashes every 40 seconds, but not too brightly. Mine was dated for a bit over 10 years, which will be good, assuming the battery does indeed last this long. Manufacturers advise replacing alarms after 10 years anyway (even when mains powered or powered by replaceable 9v batteries) so you don’t lose anything by going for one of these 10-year models.
I’ve used several brands of smoke (and CO) alarms and Fire Angel is the brand recommended by our chimney sweep for both smoke and CO alarms.
This is an especially slim alarm with a glossy casing and, unlike most alarms, actually looks quite attractive. Overall it is 125mm diameter and 30mm deep when fitted onto its baseplate which is screwed onto a wall or ceiling. A large test button in the centre allows for easy weekly testing to ensure the battery is still in good condition while also silencing erroneous alarms (eg when detecting cooking smoke) and reducing its sensitivity for the following 10 minutes making it especially welcomed by most households where inevitable cooking ‘accidents’ can trigger false alarms.
With its fitted 10 year battery we should no longer have to endure the dreaded low battery alarm bleep and, with an alarm in each room, trying to work out which has a failing battery – usually in the middle of the night while we are trying to sleep. With this in mind, I particularly welcome the ‘sleep easy’ feature: when the battery runs low it will bleep once every 40 seconds, like all alarms, but by pressing the ‘test/silence’ button once it will silence the alarm from these bleeps alerts (although still continuing to detect smoke) for 8 hours to allow the household to sleep through the night. This is much safer than the method we’ve often used, along with probably many other kept-awake and desperate-for-sleep households who simply remove the batteries to switch off the bleep then may later forget to replace them the next day. Conveniently, this low-battery warning bleep can be silenced up to ten times which allows ample time to arrange a replacement smoke alarm and the alarm continues to work in the meantime.
This 10-year life smoke alarm is also more economical in use than the type with replaceable batteries because we no longer have to factor in the cost of 10 replacement batteries during its 10 year life. It is also ideal for rental properties where tenants can’t always be relied upon to test or replace batteries as necessary while also being tamper-proof.
I would definitely recommend this alarm, particularly for family households wanting to avoid false alarms and the annoying low-battery warning bleep which keeps them awake at night.
Recommended to me by a fire brigade officer making a routine house call to check my alarms. A long laster– perfect!
A lot better than any off the shelf alarms from the French DIY stores
Bought one to try then purchased a further 4 to cover all the house
It was the same as the fire service fitted about 8 year ago so it fitted the base perfectly so was fitted ln seconds and if it lasts another 8 year i will be very happy
o way of testing to see if it actually works..? press a button and it sounds loud.
but in case of fire who, how can you be sure ?
smoke near the alarm does not trigger it nor does the toaster or frying pan.
lets hope there is no real fire.
Not tested the item – thankfully! Visually it is very slimline and stylish. Much nicer than my previous chunky versions.
Highly rated, easy to install and with a 10 year battery life.
Well designed, easy to install and a single button makes it easy to use
One challenge is to get the front cover to align with the screwed to wall back plate so that the front looks vertical and not offset. Fitted two and failed with both but nobody seems to notice, yet.
I bought 2 based on reviews in Which reviews. I hope never to test the efficiency of these alarms in an emergency but on installation they tested okay.
Simple, straightforward honest product which does exactly what is described. No complaints here.
Incredibly easy to install. took a little perseverance to get it to switch on but now it is we hopeful have piece of mind. flashes every 40 seconds or so to let you know its working and apparently last 10 years with the battery. If it does best 20.00 i have ever spent. It even states FireAngel’s Thermoptek smoke alarms are recommended by the UK’s Fire and Rescue Service. Enough said.