Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White


CO-9D CO-9X CO-9B
Battery Life 7 Year 7 Year 1 Year
Battery Included Sealed for life lithium Sealed for life lithium 2x AA
Advanced electrochemical sensor
Easy to Instal
Multi-functional LCD digital display screen
Low level CO detection
4 week memory function – shows peak reading of cO detected over a 4 week period
Portable – for use at home & on holiday
Certified to BS EN50291-1:2010+A1:2012 & BS EN50291-2:2010


Weight: 118 g
Dimensions: 3.99 x 12.5 x 7.39 cm; 117.93 Grams
Model: CO-9D
Part: CO-9D
Colour: White
Pack Quantity: 1
Batteries Required: Yes
Batteries Included: Lithium Ion
Manufacture: Sprue Safety Products
Colour: White
Quantity: 1

277 Responses

  1. Ted Muehl says:

     United Kingdom

    Excellent battery life
    My last one lasted it’s promised 7 yrs and is still going at 10yrs. Changed it only to make sure the sensor is fresh. Easy to fit, good clear display. There are cheaper options but cheaper isn’t always better.

  2. drdolly says:

     United Kingdom 🇬🇧

    You need one more than you think
    This product saved me and my kids from co2 leaking from next doors chimney into my home. The digital read out, read 17ppm we were advised to call 999 and leave the premises. More than happy, best purchase on Amazon ever. Will be getting more.

  3. Ryan Tracy says:

     United Kingdom

    Angels are good to have
    Its just a precaution, but it could be a life-saver. Good to get a reasonably priced CO detector and this one also looks good (it has to be on display to be able to work) and is versatile on where it can be fitted.

    Easy to set up and understand, but a lot of additional technical information if you are interested.

    Good product.

  4. Anonymous says:

     United Kingdom

    My go-to alarm. And I'm in the trade.
    Often asked to provide a CO detector/ alarm as a boiler engineer. These are my product of choice

  5. TyrellVosper says:

     United Kingdom

    Essential protection at a great price
    After a little mishap with leaving a battery charger on overnight to try and resurrect an old car battery (top tip, don’t do that in the kitchen), it was time to invest in an early warning system that would warn of his next bout of stupidity. I’ve learned the hard way that Carbon Monoxide alarms also detect Hydrogen, Brucey bonus.
    Amazon offered a great price on a range of alarms, I chose this one as it has a digital readout of the CO levels which is a nice feature. Amazon delivered super fast as usual, and within minutes both alarms were activated and functioning, couldn’t be easier. I put one by the boiler and one by the log burner, it’s been nice to see that both are reading zero CO.
    It looks good, does what it’s supposed to, and provides 7 years of hassle free protection all for 18. Every house should have at least one.

  6. Anonymous says:

     United Kingdom

    Good product. Shipping took 1 month due to brexit delays
    Product is excellent but shipping took more than a month (tracking said brexit delay). I ordered two items, both of them had their seal broken (I think they were inspected at customs).

    I will order from this store again but not from the amazon.co.uk website.

  7. RenaPeacock says:

     United Kingdom

    Golden Review Award: 2 From Our UsersGood little alarm, easy to set up and use.
    This is the 3rd one of these that I have bought – 1 being for a relative. Nice little piece and easy to set up and use/read. Has a green light which flashes once every minute to let you know that it is working. Unfortunately one of ours malfunctioned shortly after we bought it – the loudness of the alarm is very good and I’d say would wake up even the heaviest sleeper. Ours was blasting through the house and a red light was flashing rapidly on the front. We immediately opened all doors and windows and contacted the emergency number for potential carbon monoxide leaks. The house was found to be safe as were our neighbours and it was put down to a simple malfunction. I did have the alarm positioned right next to a vanilla reed diffuser though and the alarm smelt very strongly of vanilla. The engineer said he didn’t think that would be the cause but could not rule it out. Just a word of warning there for when you are placing your alarms. Overall I would recommend these to all.

  8. MarlonJSUI says:

     United Kingdom 🇬🇧

    Should be mandatory in all public and private properties.
    This is so easy to stick on the wall or wherever, should be standard fitting in all properties private or rented, more so in rented. It would save lives by alerting every one of silent killer gases .

  9. TyKeetonpkjg says:

     United Kingdom

    Should be mandatory in all public and private properties.
    This is so easy to stick on the wall or wherever, should be standard fitting in all properties private or rented, more so in rented. It would save lives by alerting every one of silent killer gases .

  10. Anonymous says:

     United Kingdom

    Good quality
    Really nice quality and easy to use and install! My only criticism is that to view the room temperature reading you have to sound the test alarm! Not a great design feature!

  11. Lawrence Allan says:

     United Kingdom

    Great Long Lasting CO2 Alarm
    I’ve used this fire alarm for 4 years now, still working fine. I do check it every few months like normal fire alarm but I have no complaints about it. I was told to make sure its a certain distance away from the hob and boiler by an engineer from British Gas. So now its sitting on top of my fridge in the middle of the kitchen.

  12. Anonymous says:

     United Kingdom

    Great value detecto
    I chose this after reading that this make and type were highly recommended by Which ?
    I didn’t want a cheap detector from an unknown brand as many on this website are , I wanted one that was good value and gave me confidence that it was credible hence my choice . Comes with very clear simple instructions and I am very pleased. would recommend highly .

  13. Anonymous says:

     United Kingdom

    value for money
    The Fire Angel Carbon Monoxide alarm is straight forward and easy to us. The hard bit is ensuring it is in the right place for what you need, Great product though and arrived in time. Well packaged with complete instructions on how to use and where to site

  14. JackiOBIVxhme says:

     United Kingdom

    Fire ANGEL Is Exactly What This Is
    We have used a multifuel stove for a year, but 2 weeks ago our CO detectors both sounded their alarms! We have one in the kitchen (gas boiler) – this model & the other in the living area (model with no display).
    The experience was in all honesty, quite frightening & explained why I had felt so unwell for about 3 days. Without the 2 Fire Angel detectors, all 3 of us plus 4 pets might eventually have become a statistic, without even realising it.
    Solution:
    1. Stopping use of stove
    2. Replacing front room detector with this model with digital display/visual early warning
    3. Contacting stove service/repair engineer, who is due to visit
    If you have a gas or solid fuel appliance, these really are a must. I can only speak from personal eperience & hopefully that explains all.

  15. Anonymous says:

     United Kingdom

    Very pleased
    Visually the device is very pleasing to the eye. Build quality is excellent. It can be fixed to a wall or can freestand. Apparently the battery (built in) should last about 7 years; after which, you are encouraged, for safety reasons, to discard the unit and purchase another one. The display is clear – as is the instruction manual. The alarm 86db is loud enough, providing that there is not too much background noise.

    Test each week is strongly advised by FireAngel.

  16. Jayme says:

     United Kingdom 🇬🇧

    Safety firs
    After the failure of a previous alarm led to the replacement of a dangerous boiler I’ve installed 3 Fire angel’s for added piece of mind. In addition to reading the current carbon monoxide levels it also records the reported highest readings in the preceding days & offers a thermometer option as well. Highly recommended.

  17. Anonymous says:

     United Kingdom

    Great produc
    Have been running this for over a year now, it’s working as well as from day 1. Obviously, without Carbon Monoxide on hand I can’t confirm its accuracy but can confirm it’s a well-made product, clear to read and easy to use.

  18. Meara Isenberg says:

     United Kingdom

    Great produc
    Have been running this for over a year now, it’s working as well as from day 1. Obviously, without Carbon Monoxide on hand I can’t confirm its accuracy but can confirm it’s a well-made product, clear to read and easy to use.

  19. FrancescoWeedon says:

     United Kingdom

    Replacement for older version.
    Time to replace older version and decided on this model. Nice unit with added bonus of thermometer. Instructions to place for fitting are clear but some households will find it difficult to place if wanting to hide. Not ugly but recommended to fit above highest window or door 150mm from ceiling puts the unit in full view. Not important as safety comes first. Test by pressing button weekly and good to go. Recommended

  20. Lincoln36V says:

     United Kingdom

    Fully sealed, set it and forget it. Essential for safety.
    This is a sealed unit, there are no batteries to change (or forget to change). I think it’s a 7 year life then you have to buy another.
    As much as I hate sending devices to landfill unnecessarily when it comes to safety products like this, I’d much rather renew it with a complete new device every seven years than run the risk of relying on an old or faulty unit.
    It does have a little LED on it that flashes every now and again so need to bear that in mind if it’s going in a bedroom or near a TV.

  21. Thrifty Nifty Mommy says:

     United Kingdom

    Good alarm ovverall but wish it was a bit loude
    Arrived promptly and was well packaged. Easy enough to install with simple instruction. I bought the one that does not need replacement batteries and is expected to last at least 7 years. I hope this is the case. The only thing is the alarm is not very loud and as it’s in the integrated garage I’m unsure if I’ll hear it if it goes off. The smoke alarms are very loud so I expected this to be similar. Otherwise doesn’t seem bad value for money.

  22. TawannaIsom says:

     United Kingdom

    Good alarm ovverall but wish it was a bit loude
    Arrived promptly and was well packaged. Easy enough to install with simple instruction. I bought the one that does not need replacement batteries and is expected to last at least 7 years. I hope this is the case. The only thing is the alarm is not very loud and as it’s in the integrated garage I’m unsure if I’ll hear it if it goes off. The smoke alarms are very loud so I expected this to be similar. Otherwise doesn’t seem bad value for money.

  23. Anonymous says:

     United Kingdom

    Seems to work perfectly
    Was accurately sampling CO levels, I saw it measure 10-15PPM and back down to zero.
    Highly recomend this model as it gives you a metric to measure background level CO levels, not just a basic alarm.
    I got 2 of them, acting as double-checks for each other cos CO is not something to mess with, not that I don’t have trust in the device.

  24. Anonymous says:

     United Kingdom 🇬🇧

    Good quality device
    Not made in China, hooray. Getting the device on to 2 drilled and plugged screws is dependant on how accurately you can drill. I always find one hole is off centre which makes mounting harder.
    Seven years battery life so will not have to do this for some time. My last one did 7 years and 9 months.

  25. Anonymous says:

     United Kingdom

    Good quality device
    Not made in China, hooray. Getting the device on to 2 drilled and plugged screws is dependant on how accurately you can drill. I always find one hole is off centre which makes mounting harder.
    Seven years battery life so will not have to do this for some time. My last one did 7 years and 9 months.

  26. Anonymous says:

     United Kingdom

    Do NOT use the screws provided when mounting this device
    Only got it yesterday but seems decent enough. Nice clear display with either temperature or CO content. My only complaint came from when I tried to mount it. I intended to screw it to the front of one of my kitchen cabinets. Pre drilled the holes, started putting the first screw in when the head snapped off leaving the body of the screw stuck in the cupboard. The second screw did exactly the same. If you want to mount this anywhere, do NOT use the screws provided.

  27. Anonymous says:

     United Kingdom

    Top Brand
    Cant comment on durability or effectiveness because I’ve only had them for a few weeks and they are a safety precaution.
    Top marks are for the styling and LCD display.
    Fire Angel are a top brand in this area.

  28. Anonymous says:

     United Kingdom

    Top Brand
    Cant comment on durability or effectiveness because I’ve only had them for a few weeks and they are a safety precaution.
    Top marks are for the styling and LCD display.
    Fire Angel are a top brand in this area.

  29. thedemuremuse says:

     United Kingdom

    Nice device
    Nice looking piece of equipment but the thermometer is not accurate, reading 4 degrees from correct, so only 4 stars, but then again I am more interested in its intended ability.

  30. Anonymous says:

     United Kingdom

    Great digital display
    This is a life saving device. It is very accurate and everyone should have a few of these in their home. I like the digital display so I can see if there’s any trace of carbon monoxide and I can sort it out before the level gets to dangerous.

  31. Anonymous says:

     United Kingdom 🇬🇧

    Useful for camping.
    Used to monitor CO while camping as I use a lot of petrol/paragon lamps/cookers. Perfect bit of kit, constant read out of CO in parts per million and it can be switched on and off via the activation tag. With 7 years battery life this bit of kit should last me for the rest of my camping life.

  32. MelissaPaling says:

     United Kingdom

    Recording of peak levels was very helpful
    I live in a block of flats and one flat had a boiler that was intermittently emitting carbon monoxide. The gas company and fire brigade came out on 4 different occasions and could never track down which flat was the source. Thanks to the display on this detector and it’s ability to record peak readings, I was able to isolate which boiler was causing the problem. I strongly recommend spending a little more to get the digital display.

  33. Anonymous says:

     United Kingdom

    Useful for camping.
    Used to monitor CO while camping as I use a lot of petrol/paragon lamps/cookers. Perfect bit of kit, constant read out of CO in parts per million and it can be switched on and off via the activation tag. With 7 years battery life this bit of kit should last me for the rest of my camping life.

  34. Anonymous says:

     United Kingdom

    Great alarm
    I really like the fact you can see the level of fumes in the room, mine has stayed on zero with an open fire alight. There is a test function that shows how quickly the numbers can rise when its exposed to fumes. The temperature display is also a good feature

  35. Anonymous says:

     United Kingdom

    Great alarm
    I really like the fact you can see the level of fumes in the room, mine has stayed on zero with an open fire alight. There is a test function that shows how quickly the numbers can rise when its exposed to fumes. The temperature display is also a good feature

  36. AureliaCramsie says:

     United Kingdom

    Great piece of ki
    Excellent monitor, which picks up on the smallest amounts of CO in the atmosphere. Used it in our campervan, where it gave clear, accurate readings of issues relating to the leisure battery ‘gassing’. Gives you a good indication of the extent of the problem, even when levels are not high enough to trigger the alarm. Much more useful than versions which don’t include a digital readout. Highly recommended.

  37. lucy at dear beautiful boy says:

     United Kingdom

    Reliable CO monito
    I have used fire angel alarms for years hence this choice. I was pleased to see it given a replace date as many people do not realise that even with a functioning battery they cease to function after a few years

  38. Taylor Lyles says:

     United Kingdom

    Reliable CO monito
    I have used fire angel alarms for years hence this choice. I was pleased to see it given a replace date as many people do not realise that even with a functioning battery they cease to function after a few years

  39. Anonymous says:

     United Kingdom 🇬🇧

    Looks fine
    I have mine on the side of a cupboard, as shown in the photo (read the instructions about where it should / must not be positioned). It’s next to my smoke alarm and I think that for what they are, they both look fine. I think this brand makes the nicest looking and most straightforward products.
    I would recommend this brand and this product.

  40. Anonymous says:

     United Kingdom

    Looks fine
    I have mine on the side of a cupboard, as shown in the photo (read the instructions about where it should / must not be positioned). It’s next to my smoke alarm and I think that for what they are, they both look fine. I think this brand makes the nicest looking and most straightforward products.
    I would recommend this brand and this product.

  41. Mike Flacy says:

     United Kingdom

    my best purchase of the decade
    Had it 7 years (bought in 2013, and will need probably changing before this year is over), not only has it been faultless, including warning me when I charged my car battery in my room one time, unknowingly aware of the fumes that causes, it also has proved to be a great battery. Additionally I also use it as my house thermometer. 100% recommend this, even if it cost 3 times as much, an absolute life save

  42. Anonymous says:

     United Kingdom 🇬🇧

    Small and Sturdy
    Seems to do what it says, nice and compact and attached to the wall without issue with supplied fittings. I have carried out a test using an incense stick as mentioned in the instruction and device went out as it should.

    Unable to comment on battery life but a previous version of the fire angel detector lasted the time specified so hoping for the same.

  43. Anonymous says:

     United Kingdom

    Ok with a few flaws
    Ok so I won’t really know if this works unless it actually works so this review is really only going to put a couple points out.

    The switching from CO display to temperature is annoying as you have to press the ‘test’ button which obviously emits the alarm sound. So don’t think there is a simple button to change displays !

    Temp on mine is overrated by 1 degree so it’s not far out when compared to room thermometer

    One other thing – they should really have given a simple double sided foam pad install option as it’s not really something I’d like to screw to the wall..

    Other than that it’s a good unit and hopefully will work when needed to !

  44. Anonymous says:

     United Kingdom

    Easy to install and read digital scree
    Looked at lots of carbon monoxide alarms before setling for the fire angel CO-90 as i especially like the digital display and the ease of fitting. Backplate makes it easy to install and the digital read out is easy to understand rather than just lights and checking manual to see what they correlate to. Good products and good price

  45. Anonymous says:

     United Kingdom

    Easy to install and read digital scree
    Looked at lots of carbon monoxide alarms before setling for the fire angel CO-90 as i especially like the digital display and the ease of fitting. Backplate makes it easy to install and the digital read out is easy to understand rather than just lights and checking manual to see what they correlate to. Good products and good price

  46. Zacks Equity Research says:

     United Kingdom

    So far so good
    bought this a few months ago as the previous brand in our house just kept running out of battery too quickly, this sits on the window in the kitchen and is great, nice and loud for the test alarm and gives real time temperature of the kitchen.

  47. MXHEllenrkpra says:

     United Kingdom

    Bought to replace an existing fireangel CO-9D
    The device has a 7yr self contained battery, and the old one has passed its 7 yr life span. The replacement will be held in reserve pressed into service, when the old one displays the battery warning sign. I will possibly post a further comment when the original one gives up the ghost. Its nice to have a device, that does what it says on the tin.

  48. Armando98V says:

     United Kingdom

    Bought to replace an existing fireangel CO-9D
    The device has a 7yr self contained battery, and the old one has passed its 7 yr life span. The replacement will be held in reserve pressed into service, when the old one displays the battery warning sign. I will possibly post a further comment when the original one gives up the ghost. Its nice to have a device, that does what it says on the tin.

  49. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersSeems to work..
    This gets a which best buy, (important, because there are some out there, even on Amazon, that are frankly dangerous, in that they don’t report dangerous levels of CO) It wasn’t overpriced either.

    It does have a display which helpfully displays temperature most of the time. This is handy, because if there’s sufficient Carbon Monoxide about that you are going to pay attention to this alarm, you really shouldn’t be hanging around reading the CO PPM ( Parts Per Million) display., making it otherwise pretty pointless. But it displays temperature too, so that’s OK. (although for the cautiously curious, it does allow you to ‘test’ it – if you attempt to do so, please do it outside!)
    So pleased with it. Sealed for life battery – that apparently lasts 5 years, which is also good as this is the expected useful life of the CO sensor or indeed, any CO sensor -they get ‘poisoned’ eventually, and will no longer correctly reflect the CO level.
    That’s tedious, as you need to replace them – but this ‘sealed for life’ approach means that it won’t let you carry on using it after it is no longer safe to do so. Remember folks – carbon monoxide is odourless, colourless, and binds to the blood cells better than oxygen – so it kills real quick, and it takes a long time for the sub lethal effects to pass.
    If this thing squeals, get out, stay out – don’t muck about..

  50. Anonymous says:

     United Kingdom 🇬🇧

    A must for home safety
    A must for home safety in my home so this is a great buy. There are cheaper ones out there but for CO detectors, price is really immaterial. safety comes way ahead of price. I recommend this. Easy to set up. An easy test mode and it can be deactivatd when not required (so read the maual before throwing any items away that come with the detector!)

  51. Glenn P says:

     United Kingdom

    Essential piece of detection equipment that could save lives
    Bought this carbon monoxide detector for the car just to put my mind at rest that no exhaust fumes were getting in. It works well and I like the fact that it has a display that shows the level of any carbon monoxide that might be present. It was interesting when I drove through a tunnel in the car and it did detect a small amount of car monoxide from the other cars that was within safe limits. This then reduced to zero after I left the tunnel. It was reassuring to know that it works though

  52. Anonymous says:

     United Kingdom

    Essential piece of detection equipment that could save lives
    Bought this carbon monoxide detector for the car just to put my mind at rest that no exhaust fumes were getting in. It works well and I like the fact that it has a display that shows the level of any carbon monoxide that might be present. It was interesting when I drove through a tunnel in the car and it did detect a small amount of car monoxide from the other cars that was within safe limits. This then reduced to zero after I left the tunnel. It was reassuring to know that it works though

  53. Anonymous says:

     United Kingdom

    A neat CO alarm
    This is a very neat alarm which stands on the windowsill near our gas fire. The dial is easy to read & you can alternate it to tell the room temperature if you wish. It is ideal if you don’t want to drill in to a wall and as it is sealed for life there is no messing with having to change batteries.

  54. Lance Cartelli says:

     United Kingdom

    Exact leave monitoring
    Really like the temperature feature and love the live monitoring display – it tells you exactly how much (if any) carbon monoxide is in the room. Only slight quibble is that the noise switching display from carbon monoxide to temperature is very loud. It still monitors whether in temp display or not. But this is a far superior product than big standard models.

  55. Anonymous says:

     United Kingdom

    Simple, easy, reliable
    I purchased 2 of these items, 1 for the area of my home where I have a propane gas fired central heating system, the second for my garage and workshop which has a portable butane heater.
    Both devices were easy to fit and give a clearly visible display of any contamination.

  56. Anonymous says:

     United Kingdom

    Simple, easy, reliable
    I purchased 2 of these items, 1 for the area of my home where I have a propane gas fired central heating system, the second for my garage and workshop which has a portable butane heater.
    Both devices were easy to fit and give a clearly visible display of any contamination.

  57. Anonymous says:

     United Kingdom

    Effective and intersting!
    Easy to set-up and they work which is the main thing. They also double as a thermometer and I’ve found it interesting seeing the temperature of the room vary next to my open fire. Put the CO meter next to my father in laws open fire which often spills smoke and it was interesting to see the CO ppm measure increase then dip back again. Useful if you just want to know that CO is leaking below the typical alarm levels.

  58. ScarletRosentha says:

     United Kingdom

    Effective and intersting!
    Easy to set-up and they work which is the main thing. They also double as a thermometer and I’ve found it interesting seeing the temperature of the room vary next to my open fire. Put the CO meter next to my father in laws open fire which often spills smoke and it was interesting to see the CO ppm measure increase then dip back again. Useful if you just want to know that CO is leaking below the typical alarm levels.

  59. BobMcIlrath says:

     United Kingdom 🇬🇧

    Life saver!
    Life saver. Literally. So grateful we had it in the house as it alerted me to the danger of a leak while we were all fast asleep in the house. Windows open, kids out of bed at 2am and dialled “Smell Gas”. Fire brigade responded and thankfully due to the alert everyone was safe. Well worth the additional premium to get a digital read out as we could monitor actual rising / falling readings on the device. Recommended.

  60. Anonymous says:

     United Kingdom 🇬🇧

    Reassurance
    Much more reassured by having a digital read out. Bit confusing as where is best place to put it. Says not within a 1m of the boiler but mine is inside a cupboard so have had to install outside on the landing. Seems from researching that it should be at eye level in any room other than where the boiler is, or at least that’s my understanding. Only had it a month but all seems well so far.

  61. Patrick Holland says:

     United Kingdom

    Reassurance
    Much more reassured by having a digital read out. Bit confusing as where is best place to put it. Says not within a 1m of the boiler but mine is inside a cupboard so have had to install outside on the landing. Seems from researching that it should be at eye level in any room other than where the boiler is, or at least that’s my understanding. Only had it a month but all seems well so far.

  62. Anonymous says:

     United Kingdom

    Life saver!
    Life saver. Literally. So grateful we had it in the house as it alerted me to the danger of a leak while we were all fast asleep in the house. Windows open, kids out of bed at 2am and dialled “Smell Gas”. Fire brigade responded and thankfully due to the alert everyone was safe. Well worth the additional premium to get a digital read out as we could monitor actual rising / falling readings on the device. Recommended.

  63. Anonymous says:

     United Kingdom

    Essential device that's easy to install.
    An essential safety device for all households with an open fire/wood burner/ gas appliances.
    The CO2 alarm is very easy to install by just pulling the plastic tag out to connect the battery and follow the instructions on where to put it. (I attached it above the door using heavy duty velcro pads). The alarm is very loud and has an easy to read display which constantly monitors CO2 levels and room temperature.
    This model is a Which? best buy and is a great price on Amazon. I feel safer using my wood burner now that I have this alarm installed.

  64. LorriZXGDqj says:

     United Kingdom

    Seem ok, so fa
    Time will tell whether they actually last seven years but buying through Amazon you don’t need to find an old receipt to make a claim if they don’t!

    Seem well made. I like the readout, gives peace of mind. You can test them in an ultra sensitive mode and blow out a match nearby. I also like that you can have them showing the room temperature.

    They stand on a shelf or you can wall mount.

  65. Anonymous says:

     United Kingdom

    Seem ok, so fa
    Time will tell whether they actually last seven years but buying through Amazon you don’t need to find an old receipt to make a claim if they don’t!

    Seem well made. I like the readout, gives peace of mind. You can test them in an ultra sensitive mode and blow out a match nearby. I also like that you can have them showing the room temperature.

    They stand on a shelf or you can wall mount.

  66. TrinaCarrera says:

     United Kingdom

    Golden Review Award: 3 From Our UsersFireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm
    I bought one of these 7 years ago and it has sat there silently, gently flashing every 5 minutes or so, indicating 0 CO on the digital readout. I went to a friend’s house the other day and found hers (different make) in a saucepan of water on the draining board because its battery had finally gone flat and woke her in the night. I was amazed it was still working although it had been under water for 12 hours. Anyway, I ordered her a Fireangel because I can’t fault mine: I’m not dead yet! The new one has arrived and it is possibly nicer than the old one – it has a few extra functions that I hadn’t noticed on mine, such as a thermometer (yawn!) and also a sensor test mode, where you can test it by holding a joss stick near it (I only briefly read her instructions. I think in test mode, the LCD shows you how much CO the joss stick is emitting, but the alarm doesn’t go off). Also it doesn’t flash, which is probably a good thing – it just has a little intermittent symbol on its LCD display instead to show that it is working.

    Now after 8 years mine clicks every 5 or 10 minutes when it’s cold, so the battery is probably low and it’s time for me to buy another.

  67. Anonymous says:

     United Kingdom

    Vital for every home!
    We all know the annoying chirp an alarm gives when running low on battery, especially when it starts in the middle of the night. I wanted a solution that would mean an end to changing batteries. I can’t comment on the 7 year battery life yet as I’ve only had it a few months but I’m hoping this really is ‘fit and forget’ for several years.

    The unit itself is smart looking and not too chunky. It gives an interesting historical read out, but since I’ve had no positive readings, it shows a zero graph. But it is reassuring to know that you could see if there had been any potential carbon monoxide readings. You can set the unit to constantly display the temperature of the room which is a useful feature. It also came with a thoughtful battery disconnect tag, which you can insert to take for unit away on holiday if you are packing it in a bag.

    Carbon monoxide is a silent killer and this is a very smart investment.

  68. Angela Scott-Briggs says:

     United Kingdom

    Overall quality item.
    It seems good quality for money. The thermometer is accurate as the reading tallies with other devices such as hive.
    I think it’s useful to see the exact reading of carbon monoxide for reassurance although I have never seen it over 0 yet.
    The alarm is loud when testing. The instructions for placing the alarm could be a little better. Overall it seems a decent product that you can leave in place and not have to concern yourself with battery life etc.

  69. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersLife Save
    Last night I had my 2nd carbon monoxide leak in a week. I purchased two detectors and both alarms sounded and at the same time also indicated the level of carbon monoxide in the air. Last week was my first leak and only one alarm sounded. I can only assume it was because it was badly positioned. I repositioned it the following day. I am very pleased to have purchased these alarms which have probably saved my life. What I also liked was that I immediately opened all of the windows and I was able to see instantly the level of carbon dioxide diminish via the screen. I then felt safe enough to go back to bed leaving the windows open. Had I had an alarm without a screen i would have had no way of knowing that it was safe to go back to sleep. Next steps: buy another Fireangle detector for a bedroom and replace my faulty woodburner!

  70. ChristiZug says:

     United Kingdom

    Great Carbon Monoxide Alarm
    Prompt delivery at a good price
    The unit is very easy to install, fits onto two fixing screws which are supplied.
    Very easy to use, unit scrolls between carbon monoxide level and a temperature display screen.
    7 year sealed battery life makes it fit and forget until it’s due for replacement.
    I would recommend this product.

  71. Anonymous says:

     United Kingdom

    Great Carbon Monoxide Alarm
    Prompt delivery at a good price
    The unit is very easy to install, fits onto two fixing screws which are supplied.
    Very easy to use, unit scrolls between carbon monoxide level and a temperature display screen.
    7 year sealed battery life makes it fit and forget until it’s due for replacement.
    I would recommend this product.

  72. Anonymous says:

     United Kingdom

    Works perfectly
    I needed a replacement alarm and this was great value for money. No more changing batteries, although I find that the batteries in these sort of alarms do last a long time anyway. I didn’t attach it to the wall, it’s able to stand near my appliance so I don’t have to worry about drilling holes. There’s a few different options like room temperature etc but I just leave it on the display that tells me if it’s detected any fumes, luckily it hasn’t.
    You can test if the alarm is detecting carbon monoxide, instructions are in the manual and this should be done on a regular basis to ensure the alarm is still working.
    Great price and great quality.
    Hope you found my review helpful

  73. Anonymous says:

     United Kingdom

    Peace of mind and so easy to use
    Despite my husband telling me our oil boiler gets serviced every year and we therefore don’t need one, I bought it for peace of mind. It has a Zero reading, which of course is what we hoped, but it is there in our utility, easy to read if anything changes. For the small amount of money, I thought it was well worth it.

  74. Annies Granny says:

     United Kingdom

    Peace of mind and so easy to use
    Despite my husband telling me our oil boiler gets serviced every year and we therefore don’t need one, I bought it for peace of mind. It has a Zero reading, which of course is what we hoped, but it is there in our utility, easy to read if anything changes. For the small amount of money, I thought it was well worth it.

  75. AprilTomaszewsk says:

     United Kingdom

    A must have
    Have had one unit over 7 years and needed a replacement could not recommend enough and that you can either fit to a wall or simply place on a counter, would recommend this item as it may be a little expensive but it could save you and loved ones their life. Would definitely recommend.

    Recently triggered off by charging a vehicle battery but before process of elimination was done, called the gas helpline, isolated the gas and confirmed co2, yet when boiler was services found out the alarm was triggered by charging a battery on boost, at least we knew what the issue is and the fact it detected co2 as the gas board confirmed.

    Dont hesitate buy one and you won’t be disappointed, and could save you or your loved ones lives.

  76. TracyGerard says:

     United Kingdom

    I haven't died, which is nice.
    I mean, I suppose at this point I have to say that the product is good. I am alive and have not died from carbon monoxide poisoning. However, my continued existence is probably more down to the fact that my boiler hasn’t spewed carbon monoxide everywhere rather than the purchase of this device.

    Well done boiler manufacturer.

    My life, little Fireangel, is potentially in your hands. Not that you have hands. My life, little Fireangel, is in your sensors.

  77. Anonymous says:

     United Kingdom

    An essential safety item
    My British Gas service engineer gives me a black mark on his boiler service report if I don’t have one of these in the same room. He says I should have one in every room with a gas appliance..

    This is a neat and unobtrusive device.

    It’s not possible to actually test whether it goes off if there’s carbon monoxide in the room, so I’ll take it on trust.

    I hope I never hear it go off!

  78. YangMelissa says:

     United Kingdom

    Decent.
    Bought these to station around the house. Whilst not the cheapest, its a rated name and a good deal for the set i got.

    Instructions were clear, the battery internal so you literally pull out a tab, and off it goes. These ones also tell you the temperature in your property which i thought was a nice touch. Mounted waist height, and so far running a dream without issue. Good product from a trusted brand.

  79. Anonymous says:

     United Kingdom

    Decent.
    Bought these to station around the house. Whilst not the cheapest, its a rated name and a good deal for the set i got.

    Instructions were clear, the battery internal so you literally pull out a tab, and off it goes. These ones also tell you the temperature in your property which i thought was a nice touch. Mounted waist height, and so far running a dream without issue. Good product from a trusted brand.

  80. MelKirk says:

     United Kingdom

    An essential safety item
    My British Gas service engineer gives me a black mark on his boiler service report if I don’t have one of these in the same room. He says I should have one in every room with a gas appliance..

    This is a neat and unobtrusive device.

    It’s not possible to actually test whether it goes off if there’s carbon monoxide in the room, so I’ll take it on trust.

    I hope I never hear it go off!

  81. Naomi Leach says:

     United Kingdom

    A must have
    It’s one of those things you will only truly know how well it works. When it’s too late to go back if it’s no good.
    I wanted one to replace my existing one looked around at others liked the idea of a display. Easy to set up easy to operate looks ok green led flash’s regularly test it ever week seems to be fine. Over all happy with it.

  82. VilmaGvnfzcy says:

     United Kingdom

    A must have
    It’s one of those things you will only truly know how well it works. When it’s too late to go back if it’s no good.
    I wanted one to replace my existing one looked around at others liked the idea of a display. Easy to set up easy to operate looks ok green led flash’s regularly test it ever week seems to be fine. Over all happy with it.

  83. BananaBuzzbomb says:

     United Kingdom

    Superb value for money.
    I bought the twin pack of these so that I could give one to my parents and keep one for myself. My parents have central heating and have installed it about two meters away from the boiler, where as I have an open coal burning range so though I’d but these to monitor our houses for problems with carbon monoxide.

    The unit looks modern and is quite stylish to look at, the display can be changed to show either ambient temperature or CO levels with a push of the single test button. The alarm is very loud and has a flashing LED warning that lights up the front of the display.
    The unit comes with a sealed battery that should last for a couple of years, the display occasionally flashes green to show that the battery is working correctly (this may be a problem if used in a bedroom).

    I think these are some of the best looking detectors that I’ve seen and were very reasonably priced. Worth every penny for a bit of peace of mind.

  84. BenedictD34 says:

     United Kingdom

    A life Saver!!
    Not only was this easy to fit but looks smart in position in our lounge with a really useful temperature display. It’s also worth noting that the device has been tested and certified by the British Standards Institute and bears the trusted Kite Mark. Overall very pleased. UPDATE>>>> I purchased this in May 2019. In February 2020 one evening my wife and I were watching TV with the gas fire on when the alarm suddenly started to sound and the graph on the device was warning of dangerous levels of CO in the air. I turned off the fire and vented the room. It turned out we had a faulty seal on the fire!!! This is certainly money well spent 🙂

  85. Kevin R. Tipple says:

     United Kingdom

    Does what is required
    This is a replacement for an out of date similar product with the benefit of a display of the room temperature.

    Not been needed in anger yet but have tested it against a gas fire with near zero reading and no did not expect any thing else.

    One of those devices you get on a if ever needed basis and hope it never is !

  86. Anonymous says:

     United Kingdom

    Does what is required
    This is a replacement for an out of date similar product with the benefit of a display of the room temperature.

    Not been needed in anger yet but have tested it against a gas fire with near zero reading and no did not expect any thing else.

    One of those devices you get on a if ever needed basis and hope it never is !

  87. Anonymous says:

     United Kingdom

    Great value
    We already had an interlinked fireangel carbon monoxide alarm but I don’t like that it doesn’t tell you the exact ppm so I bought this one for added peace of mind. Everybody should have a carbon monoxide alarm and at this price you can’t go wrong. I like that it tells you the temperature in the room too.

  88. RaulPerrin says:

     United Kingdom

    Great value
    We already had an interlinked fireangel carbon monoxide alarm but I don’t like that it doesn’t tell you the exact ppm so I bought this one for added peace of mind. Everybody should have a carbon monoxide alarm and at this price you can’t go wrong. I like that it tells you the temperature in the room too.

  89. KrystleBathurst says:

     United Kingdom

    Nice to know we're safe
    I bought this Fireangel Carbon Monoxide Alarm to replace a previous alarm that had passed its use by date. This is a lovely little alarm with a simple, easy to understand display which not only shows any urgent issues but shows peak points for any detected Carbon Monoxide. It’s super easy to use and test and the instructions are simple. The alarm sound is really, really loud so you can feel safe knowing that this will definitely wake you up if there is an issue.

  90. Elma7226wkt says:

     United Kingdom

    Nice to know we're safe
    I bought this Fireangel Carbon Monoxide Alarm to replace a previous alarm that had passed its use by date. This is a lovely little alarm with a simple, easy to understand display which not only shows any urgent issues but shows peak points for any detected Carbon Monoxide. It’s super easy to use and test and the instructions are simple. The alarm sound is really, really loud so you can feel safe knowing that this will definitely wake you up if there is an issue.

  91. Zak Islam says:

     United Kingdom

    Can not remove battery
    I can’t comment on battery life as I’ve only just installed it,but packaging was good ,arrived promptly,very easy to install.used in a tennants house,to eliminate the possibility of batteries being removed,so as to keep them safe.

  92. Anonymous says:

     United Kingdom

    Can not remove battery
    I can’t comment on battery life as I’ve only just installed it,but packaging was good ,arrived promptly,very easy to install.used in a tennants house,to eliminate the possibility of batteries being removed,so as to keep them safe.

  93. Anonymous says:

     United Kingdom 🇬🇧

    VALUE FOR MONEY
    We have purchased one previously and it has been O.K. This is the fourth unit we have bought as our relatives have several house all of which need Carbon Monoxide alarms. In one house two of the detectors have not been commissioned yet as the property is unoccupied at present. I would perhaps purchase a mains operated unit next time by the same manufacturer.

  94. CandraJNDa says:

     United Kingdom

    VALUE FOR MONEY
    We have purchased one previously and it has been O.K. This is the fourth unit we have bought as our relatives have several house all of which need Carbon Monoxide alarms. In one house two of the detectors have not been commissioned yet as the property is unoccupied at present. I would perhaps purchase a mains operated unit next time by the same manufacturer.

  95. Oh Natural Beauty Review says:

     United Kingdom

    Great customer service!
    In March 2019 bought 4 of the Fireangel CO detectors (CO 9D model) one for each bedroom and one just outside the kitchen, and last weekend we had a rather alarming (pun intended) incident where the alarm went off showing 41ppm (apparently toxic level). It caused us a panic, we did as instructed (opened windows, turned off gas supply, turned off hot water heaters etc), but oddly putting one of the other alarms in the same location, it didn’t go off. Since it was only 2 months old, we assumed a faulty device. I contacted Fireangel and they immediately offered to replace it and agreed it was faulty. They were super about sending a replacement straight away without any fuss. The units are low profile and blend in easily, unobtrusive, and give us peace of mind. Highly recommended!

  96. Cam Bunton says:

     United Kingdom

    Great customer service!
    In March 2019 bought 4 of the Fireangel CO detectors (CO 9D model) one for each bedroom and one just outside the kitchen, and last weekend we had a rather alarming (pun intended) incident where the alarm went off showing 41ppm (apparently toxic level). It caused us a panic, we did as instructed (opened windows, turned off gas supply, turned off hot water heaters etc), but oddly putting one of the other alarms in the same location, it didn’t go off. Since it was only 2 months old, we assumed a faulty device. I contacted Fireangel and they immediately offered to replace it and agreed it was faulty. They were super about sending a replacement straight away without any fuss. The units are low profile and blend in easily, unobtrusive, and give us peace of mind. Highly recommended!

  97. Tessa10Cnbjr says:

     United Kingdom

    Simple, Good Product with a minor annoyance.
    I bought two. They are fine. Simple. cheap. Does what it says on the tin. But. This product has two display modes CO ppm and temperature. I would like to display temperature as a general rule. The only way of changing the mode is to press the ‘Test’ button. Annoying in itself. But it then changes back to what ‘it prefers’. On one of the alarms that it temperature. On the other it is CO ppm. Why? Minor point but slightly frustrating!

  98. Anonymous says:

     United Kingdom

    Carbon Monoxide 'just in case' safety scenario
    Surprisingly compact device with clear, easy-to-read instructions & directions for installing, looks like it does the job! Given it 4 stars as only had limited time to evaluate but feel a lot safer with having this in the house, constant reminders from our Annual Gas Service Engineers motivated me to purchase this despite our boiler being in tip-top condition, but it’s always that ‘just in case’ scenario. Also it is portable which means you could take it on holiday if letting a cottage or villa, etc. Really good value therefore.

  99. DevonMcConnell says:

     United Kingdom

    Carbon Monoxide 'just in case' safety scenario
    Surprisingly compact device with clear, easy-to-read instructions & directions for installing, looks like it does the job! Given it 4 stars as only had limited time to evaluate but feel a lot safer with having this in the house, constant reminders from our Annual Gas Service Engineers motivated me to purchase this despite our boiler being in tip-top condition, but it’s always that ‘just in case’ scenario. Also it is portable which means you could take it on holiday if letting a cottage or villa, etc. Really good value therefore.

  100. Anonymous says:

     United Kingdom

    I think it works......
    I bought this as an extra safety feature for the house. We’ve all read about terrible accidents with CO. It is well built and boasts a 7 year battery life. Straight out of the box it reads: 0. I guess that’s very good but how do you tell if it’s actually working or not giving a false reading? I suppose the fact that I’m setting here typing out a half sensible review probably means that the zero reading is accurate enough…or is it????