Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
In the box
The CO-9D is portable so can be taken on holiday or installed within the home, and is designed to alert the household to the presence of Carbon Monoxide and provide precious time to escape.
- Alarm
- Screws
- Manuals
CO-9D Digital Display Carbon Monoxide Detector
Our CO-9D digital, 7 year life carbon monoxide alarm provides an early warning of the presence of CO in your home. The digital LCD display shows low levels of CO down to 10ppm and also peak readings over the previous 4 weeks. Ideally a Carbon Monoxide Alarm should be installed in every room with a fuel burning appliance.
Positioning: Boiler Room | Bedroom | Kitchen | Living Room
- 7 year sealed for life lithium battery
- Portable so can be taken on holiday or easily installed with the home
- Room thermometer function designed to provide a temperature indication
- Certified to BS EN50291-1:2010+A1:2012 & BS EN50291-2:2010
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Safety at home and on holidayDid you know that exposure to carbon monoxide (CO) can lead to unconsciousness, brain damage and ultimately death? A carbon monoxide alarm which gives audible and visual warning of dangerous levels of CO can save the lives of you and your family. | Common Sources of COCarbon monoxide (CO) is called the silent killer, this is because it’s undetectable to human senses – a dangerous colourless, odourless and tasteless gas that is emitted when fuel is burned inefficiently. | 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. |
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|---|---|---|---|
| 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 |
It’s really good to have a digital display. On opening door and windows I could see the CO levels go back down to zero. And on closing the door I could see the CO climbing again to 20, 25 ppm…
I’m ordering another one now… (well, the new/current model) as the existing monitor has a layer of kitchen grease on it. Seems a small price to pay for safety.
Known brand, reasonably priced, works straight out of the box. Our chimney sweep mentioned it was a good brand so all good so far
Only had it for two months so no idea of longevity hence 4 stars.
I purchased this product because I didn’t have a Carbon Monoxide Alarm. This particular product is very light and easy to install. In fact no installation is required as it can be easily sited on top of a cabinet. What I particularly like about it is that it is reasonably priced and suitable for placing in a confined space. I would definitely recommend this to anyone thinking of buying this sort of thing.
Connected smoke and heat alarms are now a legal requirement. My electrician installed the kit and I had already purchased this one. It does not require installation, it is a stand alone unit. She said that it was an excellent unit, at a good price and stylish.
It sends out a light pulse to let you know it is working. For peace of mind it is priceless.
Highly recommended.
The markets are flooded with cheaper options, some may not be of the required safety levelI won’t take a risk, what price do you put on safety equipment?
A carbon monoxide detector is an essential safety precaution if you have a gas fire in your living room. It will let out a shrill noise if your chimney gets blocked, for example by a bird’s nest. Although this is very unlikely to happen, it is better to err on the safe side! This carbon monoxide detector has the advantage that it doubles up as a room thermometer, which is useful if you are trying to control your expenditure on gas! The drawback with this unit is that it cannot be opened and the battery cannot be replaced. The battery lasts about 7 years and the unit will start to bleep forcing you to order a replacement from Amazon.
It is freestanding as well as wall mounted, my boiler must be ok as the alarm has not sounded so far!
Bought as replacement for a much older model whose battery life had ended. Just remove the battery tag to power up and fitted on old unit mounting screws. Nice and loud when using test button.
Easy to install, stands well on the book shelf. Looks good, can’t comment on battery life as only had them a little while, but hopefully good. Bought to replace old monitors that we’ve had for about 7yrs.
I got this to replace my last detector that kept alarming for no reason ( i have a back up downstairs) so I ordered this one for the display as well as the alarm. I have had fire angel products before and they are very good. Would recomend this unit. It sits next to the boiler cupboard looks nice.
I got this item as it is now essential for the renewal of the Boat Safety Certificate. The engineer who carried out my test likes this type of display as it gives warning of lower levels of CO than is triggered by an audible warning alone.
had no problem with the gadget, it has not gone off randomly.
If you read this post please inform friends and family of the below.
Smoke and carbon monoxide alarm rules extended (2022)
smoke alarms will be mandatory in all social rented homes
carbon monoxide alarms will be mandatory in rooms with a fixed combustion appliance (excluding gas
cookers) in both private and social rented homes.
carbon monoxide alarms will also be mandatory upon installation of any heating appliance (excluding gas
cookers) in all tenures through building regulations
landlords will be expected to repair or replace alarms once informed that they are faulty
I’m about to buy a replacement for the one I bought early in 2015. After almost seven years of use the battery is still okay, since buying this monitor we have only bought CO2 and smoke detectors with sealed batteries. It is comforting to know that we don’t have to keep replacing batteries, and as sensors only have a lifespan of 7-10 years nothing is wasted, and we don’t find ourselves in a situation where we have a functioning battery, but the sensor has failed. We have tested that the monitor works on a few occassions, perhaps not as often as we should have done, though the battery has been tested on a regular basis. Looking at what is currently available I don’t see anything better, so have ordered an identical replacement.
I bought this to replace previous model purchased in 2012 which has just failed having out-lived advertised battery life. I can vouch for it’s longevity then. It sits unobtrusively on a shelf. Omits a loud ring when tested and I sleep easy at night secure in the knowledge that it is doing its job. I like the display which can also show the room temperature. I have no problem with recommending this as a fine security product.
A very simple product and easy to install / use. This is the second one I have had, the previous one having a dying battery. This is my main criticism in that the battery does not last the claimed 10 years and is not replaceable, in common with several Fireangel products. In fact, anyone handy with a screwdriver and soldering iron could change the battery. The only reason I didn’t is because I could only purchase batteries in a pack of 10 so it was cheaper to replace the whole alarm!
Difficult to be positive about something {2 of} you are forced to buy when you don’t particularly want to.
Have a gas boiler which is separate from any living area and an open fire.
But the alarms are not expensive and are easy to install and understand.
After my last gas boiler service the engineer advised me I needed a new CO alarm. British Gas wanted 67 to install a new one so I decided to buy this one instead. It’s very simple. Just remove the little bit of plastic strip and it works. Screws are supplied but as I don’t have a drill I used Gorilla Tape to attach it to the top of the door to the boiler room. This is not recommended to attach it to wallpaper. The instructions for use are very clear and simple. As it has a digital display you can check the reading easily.
I needed a device that gave a visual percentage reading of CO as I use a portable butane fuelled gas fire to heat my home. I too wanted a device that was made & sold by a UK manufacturer that carried all the relevant safety certification to conform with UK health & safety regulations. I wanted & needed that assurance to have the confidence in the unit to be able to detect CO at a very early level before it became toxic & a danger to life so I could start to ventilate my living area before it was too late.
This unit does all of the above.
had one of these for over a year and recently purchased another one for a different room
I’ve had no False alarms it just works Silently in the background. One for my kitchen where the boiler is and One in the front room for my gas fire . Always buy a good brand when it comes to these sorts of gadgets.
Wasn’t sure about this item as has never bought one. On arrival I realised I would need to make some holes in the wall as it needs to be held up by two nails/screws. Holes in the wall…something else I’ve never had to do. However, I had also bought some Suguru in the same parcel and thought I’d try to make some “nails”. And what do you know? It worked:-) The boiler engineer came round the other day and asked if we had a monoxide alarm and I pointed up as he then proceeded to push the test button on it. Holding my breath I waited for it to fall away from the Suguru nails….but no Mr boiler engineer was happy that it worked and I was happy it stayed on the wall.
Just unplug the battery isolater and good to go. Displays room temperature and an occasional flash of green light to show detecting sequence. Pleasing to look at and effective
Temperature and level of carbon monoxide doesn’t change unless I press test button. Battery….Will see in time.
Good quality alarm at a great price. As someone who has had a relative who died tragically from carbon monoxide poisoning I can’t recommend the use of an alarm highly enough. This is a very good unit and I would thoroughly recommend its use to keep you safe. A small price to pay for years of peace of mind.
2nd one I have bought over the last 10 years.
Great battery life, easy to fi
Not too big with a clear display. Simple to install as batteries included. Can’t comment on battery life as just installed.
A great carbon monoxide monitor. I’ve been using it for about a year now and it works (you can test it by running your car for a minute in a garage with the door closed, but just for the test, then open and air asap!) and seems strong enough to carry around and use where you want.
The display is clear and easy to read and the system pretty much looks after itself giving you the data as you need it.
Straight forward installation. Had the chance to travel with it and use it as a night stand meter and also fit it at home. Detects even small quantities of carbon monoxide.
Simple to install and very clear screen nice wee gadge
Using as a travel carbon monoxide alarm. Easy set up , and small enough to carry safely. Given battery life 5 stars, hopefully this will be accurate
Easy to set up and should last for years hopefully. Only had it a few months so early days
Easy to install 7 year battery life so don’t have to worry about the battery running out any time soon not many instructions with it but all good as shows you what you need to do
This carbon monoxide alarm was bought as a safety device to alert when carbon monoxide is at high levels.
The alarm will go off should high levels of carbon monoxide is detected by the device. This is a life safer gadget and is recommended the alarm be tested from time to time.
I love my fire angel which is used by most UK Fire Brigades.
Easy to set up and has two modes. One shows the box monitoring and the other shows the temperature. Looks good and the design is unobtrusive. Tested and it works great. So good I bought a second for my daughters house
Simple to use a there is no need for any installation. Came with batteries included a easy instructions. Ver pleased with this one.
This C0 alarm, with a sealed battery, guarantees 7 years of protection from ‘the silent killer’, carbon monoxide. I purchased two of these – one for the boiler-room, one for the kitchen. I did this to be ahead of the new Scottish regulations on fire alarms etc, but should have done it years ago.
I moved to a house with a boiler in a child’s bedroom so I needed this for peace of mind. You turn it on and that’s it. I can’t comment on the battery. Easy to use.
Like some other reviewers, the first one I was sent was faulty out of the box. It read high levels of CO almost immediately and the alarm went off within hours of activation but the emergency gas man could find any CO. He said it was not uncommon for alarms to be faulty out of the box and even the brand new 2000 monitor he had picked up the day before had been faulty. Anyway, my replacement came quickly without any hassle and it’s working fine. It’s small and more discrete than my old one. My advice, if you buy one, is to activate it in the morning when you’re going to be home all day, so that if it does go off because of a fault it won’t happen at bedtime and you won’t have to stay up waiting for the gas man (which is what happened to me!) .
Arrived and within two minutes fully installed and fully operational.
Freestanding or Wall Mounted
Best 15 I ever spe
This is a good quality carbon monoxide alarm, the instructions are clear & does the job, the product is well made with no sharp edges.
The price is lower than I expected, I bought it while there was a limited time deal. I would certainly recommend this produc
A safety item that’s a replacement for another older model. We shall see how the sealed for life battery pack lasts?
Top quality at a bargain price it’s good to get a good deal but it’s even better to sleep safe knowing your carbondioxide levels are safe can’t be too sure could be next doors leaky,boiler, chimney or even an old paraffin burnerstay safe install today and at great price too
10/10 well recommended,regards mike
Bought to replace an older style that the owners left, which had become out of date and so far, I’m happy with it, although I can’t say how good it is about detecting carbon monoxide, as it hasn’t gone off. It looks great on the mantel piece and the little flashing light tells me all is working OK, plus it’s a thermometer too, so reads the temperature in the room, so all good so fa
What a relief to have something that would tell us if the boiler was giving out nasty fumes. I keep it in the utility room next to the boiler. It’s simple and who can put a price on peace of mind. Better safe than sorry. It doesn’t take up much space.
Excellent worry free use and instillation, nice looking, great having the digital display for both the ppm that has stayed at 0 for us, the temperature compared to our SwitchBot temp and humidity sensor is spot on, easy to install with the included screws and raw plugs.
The item was as expected, straightforward, bought it to replace old one which had reached its expiry date. Piece of mind for home safety and reasonable price.
I have this model pre-installed in my caravan, and decided to add one to the hallway of my house. Easy to install with clear instructions and template. Very simple to use, with nice clear display – doesn’t look out of place or obtrusive in the home. Has a temperature function, where it basically acts as a thermometer while monitoring in the background.
Portable alarm that does not require fixing and has multiple applications
THIS DEVICE GIVES A LOT OF REASSURANCE AND DOES NOT LOOK OUT OF PLACE IN THE LIVING ROOM. ALTHOUGH THE ALARM HAS NEVER GONE OFF, THEREFORE I AM NOT SURE THAT IT ACTUALLY WORKS, I DO GET A SENSE OF SECURITY BY ITS PRESENCE.
Bought two for the CO detection. I assume that they work for this. Never had evidence of CO leak, and I’m not going to test them by burning stuff.
I like the fact that it also provides a clear and apparently accurate room thermometer.
Looks the part dies the job good value for money
Essential where you have a log burne
I’ve bought it and set it up – it’s a job to know its effectiveness until it actually goes off (which I hope it doesn’t!) Battery life is 7 years so I’ll report back after 7 years!
Had the for 18 months and have inadvertently immersed it in a full dog bowl of water, not once but twice (these were not deliberate acts).
Drained it and both times it works perfectly.
So, if you are a clumsy, retarded, geriatric with little coordination this is a safe bet.
Have tested it and used it for over a week now. All works well and has shown 0 level all times except once when I was cooking and not using the fan, then it jumped to 12
I’ve always had smoke alarms in my house for many years but after talking to a registered gas fitter who recommended I also use a carbon monoxide alarm as I have a gas fire and gas cooker, he told me you cannot smell Carbon monoxide and if there was a build up of the gas and you fell asleep there is a chance you would wake up ever or you could suffer serious long term physical damage, this unit makes a LOUD high pitched noise to alert you so I decided for what little they cost safety comes first and they do last for quite a few years as well!
The instructions were very clear and well written. Very simple to set up. I love that it doubles as a room thermometer in standby mode, making it a nice thing to have in my room even if hopefully I never need it to save my life from carbon monoxide poisoning, and it gives peace of mind. It has a built in power pack which should last 7 years, so you don’t need batteries, and it should indicate when their power runs out. I am very happy that I bought this.
Good. Battery life is short. Not more than 18 months. Is not changeable. Think twice. Device life 10 years, battery life much much less. Don’t buy this model.
Didn’t know I needed one till my stove was serviced so ordered and fitted asap. Hope it never goes off.
Does what it says on the box. The display is clear and was super easy to install to the wall (you need a drill obviously, though). I bought this for compliance reasons but I’m happy that have it ,gives me a sense of extra safety.
You can only tell if these are good when they are needed, hopefully never. They are made by Fireangel, have had the smoke alarms from the local fire brigade, and they are good, so here’s hoping.
We’ve had one of the Fireangel CO-9D digital carbon monoxide detectors in our living room for a couple of years and decided to buy an additional one for the kitchen.
The price was 10 less than we paid for the first one so was a bargain.
Easy to install and not too bad looking as far as detectors go.
Would recommend for safety and quality.
always been a bit concerened about monoxide just hope it is actually working.testok .left on shelf showing temp
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.
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.
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.
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.
Often asked to provide a CO detector/ alarm as a boiler engineer. These are my product of choice
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.
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 .
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 .
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!
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.
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 .
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
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.
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.
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.
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.
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
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.
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
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.
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
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.
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 !
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
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.
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.
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!)
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..