Kidde 5CO Ten Year Life LED Carbon Monoxide Detecto


Kidde 5CO - Banner Image5CO - Angled View5CO - Loud Alarm and Flashing Light5CO - Tamper Proof Design

Loud alarm and flashing light

The detector raise a very loud alarm (85dB) and flashes an LED light when dangerous carbon monoxide levels are detected to notify you of the dangerous gas.

Slim and stylish

The alarm measures 72x126x35mm (HxWxD) and only stands 35mm off the wall. It features an elegant and timeless design.

Tamper proof design

The alarm can only be installed with the two AA alkaline batteries in place. The batteries are supplied with the alarm.

5CO - Comparison Image10SCO - Comparison Image10LLCO - Comparison Image10LLDCO - Comparison Image
Replaceable Battery ✓ ✓
Longlife lithium battery ✓ ✓
CO detection ✓ ✓ ✓ ✓
Smoke detection ✓
Voice warning ✓
Wall mounted ✓ ✓ ✓
Ceiling mounted ✓
Digital Display ✓


Weight: 115 g
Size: Alarm Dimensions 126 x 72 x 35mm
Dimensions: 12.6 x 3.5 x 7.2 cm; 115 Grams
Part: 5CO
Colour: White
Batteries Required: Yes
Batteries Included: Alkaline
Manufacture: Kidde
Colour: White
Dimensions: 12.6 x 3.5 x 7.2 cm; 115 Grams
Reference: 5CO
Size: Alarm Dimensions 126 x 72 x 35mm

221 Responses

  1. VerleneEllswort says:

     United Kingdom 🇬🇧

    Golden Review Award: 3 From Our UsersInstalled very easily and appears to work well. Set up in kitchen, the only place in our house to have any appliances that would generate carbon monoxide viz gas boiler and gas hob. It’s located high as per recommended location. Sound instructions to follow with good product reputation. Good value for money.

  2. Anonymous says:

     United Kingdom

    Liked the compact size and the fact it could be free standing

  3. ElvinGayaeovzhn says:

     United Kingdom

    I bought this to replace a ten year old version, so at a cost of about 1 or 2 per year worked out to be inexpensive peace of mind.
    Easy to fit – has a back plate you hook over a screw head.
    Came with a set of batteries which you can test to see if and when they need replacements.
    Simple, easy to use, good longevity.

    Replaced my 10 year old version which was still working !

  4. Bill Detwiler says:

     United Kingdom

    It’s a very important tool of a Cabon Monoxide Alarm to have in your home.
    It is easy to set up. Easy to use. The information is very easy to follow.

  5. KarlRioslif says:

     United Kingdom

    Bought this when I moved into my new house and it was really easy to set up. I have it in the cupboard with the boiler so I haven’t had to attach it to the wall, but it looks easy enough to do. The batteries haven’t needed to be changed in over 7 months so you really can just set it up and let it do its job without thinking about it. When I first set it up I did use the test function just so I would know what it sounds like and you would definitely know if you had a problem since it is so loud – which is exactly what you want from a Carbon Monoxide alarm! I would definitely recommend getting one for peace of mind!

  6. MindaGoodchild says:

     United Kingdom

    Ten minutes to install, instructions very clear. Just remember the battery does need replacing periodically, however the unit beeps when the battery life is low.

  7. Cori says:

     United Kingdom

    Can’t comment on battery life, but all easy to set up and test.

  8. KaseyBellingsha says:

     United Kingdom

    Very easy details all working in a matter of mins

  9. Anonymous says:

     United Kingdom

    I bought this product to provide detection of carbon monoxide. 2 years down the line, it is working fine. Simple design and good value for the cost.

  10. Anonymous says:

     United Kingdom

    A really good thing to have for carbon monoxide. Gives you peace of mind

  11. Joe Taschler says:

     United Kingdom

    This product is exactly what I wanted and stress free

  12. EldenAddison says:

     United Kingdom

    THIS IS REALLY GOOD BOUGHT TO REPLACE AN OLD ONE GREAT VALUE AS WELL

  13. Meira Gebel says:

     United Kingdom

    We bought these for our flat and am very pleased with our buy.
    It’s attractive, small and does not smack you in the face.
    Great for protection, our new angel
    It would be great protection in flats that are let.
    Recommend

  14. KoryDVUGye says:

     United Kingdom

    Compact and easy to install. Comes with the necessary fixing. I screwed into drywall without the stud (location of the stud was not aesthetically suitable) but this was not an issue given this unit is light enough to hold tight.

  15. Anonymous says:

     United Kingdom

    Looks good, easy to install, value for money arrived early, no problems.

  16. Anonymous says:

     United Kingdom

    Essential purchase to comply with the stupid new laws on fire safety in the home.

  17. JeraldGilroy says:

     United Kingdom

    Very easy to set up. Didn’t have any problem with it at all. I am not a high tech guru!

  18. Anonymous says:

     United Kingdom

    Easy to install and set up. Green flashing light indicates the device is active.

  19. Anonymous says:

     United Kingdom

    Easy to set up great value makes me feel safe

  20. Al Vaughters, News 4 Reporter says:

     United Kingdom

    Think this works as luckily never heard the alarm lol its still flashing away in kitchen though

  21. CiaraVanzetti says:

     United Kingdom

    Had a new boiler fitted. Gasafe engineer as part of their duties had been told to sell own companies product at twice the cost of this, they suggested this brand as half the price, easy to install, easy instructions.would recommend

  22. Rory Reid says:

     United Kingdom

    I need two of these for my Ukrainian families flat. Arrived quickly, easy to set up and great value for money

  23. Anonymous says:

     United Kingdom

    Essential safety kit for anyone with open fires, have these scatter around the house as have lots of open fires.

    Good value for money

  24. Anonymous says:

     United Kingdom

    Does what it say I hope no issues .

    Don’t cut corners with cheap versions and take pictures when in place has tenant tend to nick them.

  25. Madame Chewy says:

     United Kingdom

    Product I had previously purchased and bought again because of value for money and totally reliable throughout its life. I would buy again.

  26. Anonymous says:

     United Kingdom

    Does what it says on the box, I think cos I’ve not had a carbon monoxide leak

  27. Anonymous says:

     United Kingdom

    Bought this as the one in the property broke. It came just as described. It is good value fir money and looks quality enough for me. It was very easy to follow the instructions and install. It works perfectly.

  28. Anonymous says:

     United Kingdom

    Really happy with the purchase – hard to review fully as unless it ever goes off how do you know it works???
    But easy to set up, easy to test, I was happy with the price, it arrived next day. It’s quite small, approx the size of an iPhone on its side and it’s white so I’ve popped it on a shelf without looking too unsightly – hopefully worth every penny

  29. MosesGXZwcnb says:

     United Kingdom

    Have bought a few of these over the years and this one is the best so fa

  30. Chris Pavey says:

     United Kingdom

    Good price easy to test and set up. Wall mountable or free standing. Don’t know if the battery will last 10 years but who cares if it doesn’t its a small price to pay for something that could save your life.

  31. Anonymous says:

     United Kingdom

    Easy to set up, with clear instructions, however unsure about 10 year life as advertised, clearly states 7 years . A simple basic device, but why pay more as long as it warns you that’s all you want . Satisfied.

  32. Anonymous says:

     United Kingdom

    We were advised by our gas boiler engineer to get a Carbon Monoxide Alarm as the gas boiler was in the vicinity of our bedrooms .

    It was so easy to fit , matched our decor and should last for 10 years.
    Good value for money .

  33. Anonymous says:

     United Kingdom

    Just installed today to replace older model of same alarm. Only one fault. One of the batteries keeps coming out of place in the middle. There are 3 altogether. However when in situ alarm appears to work correctly.

  34. Abdullah Saad says:

     United Kingdom

    Just take out of box put it were you want it to be,and it’s under the 10 years legislatio

  35. MaybellMichaels says:

     United Kingdom

    I’ve had these installed 20 years ago. A house fire started across the road and the fire brigade dropped a leaflet through the door recommending to replace smoke alarms every few years. I bought the the same one as last time.

  36. Michele Just a Lil Lost says:

     United Kingdom

    The only minor problem was fitting the batteries with arthritic fingers, they required a hefty push

  37. Anonymous says:

     United Kingdom

    Have thi in my home I bought this for a rellation so I could recemend it thanks

  38. alessandro fillari says:

     United Kingdom

    Easy to set up with batteries. Smart design and two were cheaper than a pair.. so good, I recommend them.

  39. Anonymous says:

     United Kingdom

    Value for money, just having it free standing pleased I have one know

  40. Anonymous says:

     United Kingdom

    Installed in my camper van. Every camper should have one of these and a fire extinguisher.

  41. ShelaKangbpz says:

     United Kingdom

    No idea if this works. Yes it has a test button but really could be a box that only goes off when I press a button.
    It hangs on a nail easy…

  42. Melanie Plane says:

     United Kingdom

    Don’t know how good it is as only had for two months. I’ll finish the review in five years!

  43. Anonymous says:

     United Kingdom

    A very necessary alarm to have in the home and this fits the bill perfectly.

  44. EvanLTXxltqzmmq says:

     United Kingdom

    Had to replace previous one as use by date had passed. This one has changeable batteries, so should go on and on keeping us safe.

  45. Rashmita says:

     United Kingdom

    Bought this to replace one I had for 7 years. Batteries last a long time and let you know when they need changing. It flashes red when working, which can be seen only in the dark.

  46. DarbyPaspalis says:

     United Kingdom

    Could not be any easier to set up and install great safety features.

  47. Anonymous says:

     United Kingdom

    Was advised to install an alarm close to our central heating boiler by engineer when he serviced it.Having already installed one of these in our motorhome,this was the obvious choice.We now have peace of mind.

  48. TarahX59koxo says:

     United Kingdom

    It looks good, is good value and a small price for safety.

  49. Anonymous says:

     United Kingdom

    excellent. easy to set up. light shows if it is working. loud noise to indicate a problem.

  50. Owen Gough says:

     United Kingdom

    Choose this brand and bought the carbon detector for the boiler also bought the combined detector’s for other area’s of the house. Good price and needed to renew the old one’s

  51. by Hanna Horvath says:

     United Kingdom

    Golden Review Award: 2 From Our UsersI have to say it good value got money but it’s a little cheap looking
    The batteries come with the pack but don’t really say which way you fold back the clips to insert the batteries.
    The instructions you have two
    The quick guide very good
    Booklet lots of information doesn’t really explain very well ( no graphics) where you should place the alarm.
    The back plate/ battery case is how you hang the unit again dissatisfied as it doesn’t really clip into place and you have to use this as the template for the fixings.
    Price is ok seemed good value at the time

    Very

  52. RachelUDLA says:

     United Kingdom

    Straightforward ordering, fast delivery, simple instructions, easy to put up and working instantly.

  53. Anonymous says:

     United Kingdom

    Gas leak alert…very pleased with this model had similar 7 years or so ago …replaced with a new one
    Fully recommended

  54. KashaTifewnut says:

     United Kingdom

    So easy to put up and make sure you are up to date with your detector.

  55. ClevelaLudwick says:

     United Kingdom

    I really like this product and feel safer knowing I have a detector in my home now

  56. Lauren Walker says:

     United Kingdom

    Easy to install and a light flashes every 30sec to let you know that it is active. Well worth the money for the piece of mind.

  57. Anonymous says:

     United Kingdom

    This is small and very easy to use a great purchase I highly recommend it !!!
    Well done

  58. LashawnTarver says:

     United Kingdom

    Second one I’ve bought. Used Velcro coins to put it on the wall above kitchen door. Easy installation that way with no drilling or nails/screws needed.

  59. Anonymous says:

     United Kingdom

    I like it thus fare, but don’t know if it will work if & when the time comes till it happens
    Seams good value that’s all I can say really.

    All you’ll need to keep you safe in your home.

  60. ShelaBurgmann says:

     United Kingdom

    Arrived promptly, looks efficient and was easy to install. Hope it works and keeps us safe. Good instructions give advice on best location and use and benefits. On the face of it, good value for money but cannot relay say until it detects a CO2 problem.

  61. JamisonRTB says:

     United Kingdom

    I bought this after (what I thought) the old one started beeping. Letting me know it needed replacing.

    So I bought this one as it was the same one as the last one.

    Turns out I bought a spare as the beeping one was an old one on the shelf that we didn’t use.

    Never hurts to have a spare as they have 10 years life.

  62. NoellaAdey says:

     United Kingdom

    Use this as replacement for ‘out of date’ item which actually detected carbon monoxide leak after having a new boiler fitted – hope it works as well.

  63. Anonymous says:

     United Kingdom

    Very happy with this product. Keep yourself and your family safe and buy one of these today. Arrived next day. Securely packaged and so easy to assemble with very understandable instructions. A great purchase. As usual great service from Amazon. Thank you.

  64. ClaritaAntoine says:

     United Kingdom

    Life saving detector this one is very easy to use and understand

  65. Anonymous says:

     United Kingdom

    The detectors arrived within the estimated delivery time, we’re well packaged and instructions to install very clear. Do as it says on the tin. Would highly recommend.

  66. Anonymous says:

     United Kingdom

    So far I have not died from carbon monoxide poisoning. If the alarm fails to protect me from an early demise, I will update this review.

  67. Anonymous says:

     United Kingdom

    Arrived really quickly – put the batteries in and away we go.
    There are a couple of screw holes in the back and screws and rawlplugs provided – but I just placed on a flat surface next to my boiler….job done!

  68. Anonymous says:

     United Kingdom

    Bought 2 after a new boiler was fitted. Appear to be working ok

  69. Bill Roberson says:

     United Kingdom

    The carbon monoxide monitor is an essential item for the home for peace of mind.

  70. TerrencURE says:

     United Kingdom

    I ordered four alarms and they arrived within 36 hours. Good quality and easy to use. I have had this make previously but they became out of date so happy to order same again.

  71. Anonymous says:

     United Kingdom

    Simple to install and reassuring which every home should have that has a gas supply to the property. You can’t take risks with your life!

  72. Anonymous says:

     United Kingdom

    I like the fact that this carbon monoxide alarm is portable, easy to use and unobtrusive

  73. Anonymous says:

     United Kingdom

    The product itself is as expected, but the delivery driver requires reading lessons or map reading skills, left it in the next street so i am luck to have got it at all !!!

  74. ErvinBirch says:

     United Kingdom

    The unit is small and easy to test – it is also portable as its shape allows it to be placed on a flat surface (although it does have the fittings to place on a wall). This was handy as I could take it with me recently to a caravan holiday for additional safety.

  75. JanineMcAlister says:

     United Kingdom

    One of these was already fitted when I bought my house, so this was just a replacement. Very easy to install as screws were in the same place. Very neat and does the job as it bleeps when batteries are low and it’s easy to do a regular check.

  76. RoxannaYijwhgp says:

     United Kingdom

    Essential product at a very reasonable price Very quick to arrive and easy to set up. Bonus it comes with batteries

  77. Anonymous says:

     United Kingdom

    I brought these over a year ago and still haven’t had to change the batteries, they do what they say on the tin, we keep one in the living room and one in the kitchen and do a test every couple of weeks! Would recommend to anyone that needs a carbon monoxide detecto

  78. Valenti4948 says:

     United Kingdom

    Only issue would be the installation instructions- there are none. It’s quite straight forward anyway but I would’ve rathered to have an instruction pack included so I wouldn’t have to guess the screw mm

  79. Anonymous says:

     United Kingdom

    Does what it should. Easy to use, comes with screws and rawl plugs and it’s also free standing, so if like me you can’t be bothered to drill into the wall, you don’t have to!

  80. Anonymous says:

     United Kingdom

    Easy to install yourself and very easy to understand instructions with test buttons.

  81. Kevin Fitzpatrick says:

     United Kingdom

    The initial calibration and beeping might drive you mad, and the batteries seemed to go opposite to the negative-spring orientation I was expecting, but once it settles down it is fine and has a test button on the front.

  82. NolaDSVnpmn says:

     United Kingdom

    I needed a new carbon monoxide detector. It was a bit fiddly and didn’t balanced tidy. I had to put something underneath to.make it level on my unit. It was more to do with that than the detector.

  83. PamelaKeister says:

     United Kingdom

    Easy to set up and gives a warning sound when you need to replace the batteries.

  84. Anonymous says:

     United Kingdom

    Does what it states. So far so good. Nothing to complain abou

  85. Bryce Elder says:

     United Kingdom

    We were able to stand this on top of the kitchen unit as it was in range of the boile

  86. Anonymous says:

     United Kingdom

    Bought two of these CO (not CO2 as some reviewers have stated!) alarms for my kids when they went off to Uni. I am glad I did, as one had a boiler cupboard in her bedroom, so we placed it just inside the cupboard right next to the boiler. I would not have been happy for her to sleep in the room without this device being present. Easy to set up with a piercingly load alarm so impossible to ignore if it does go off. Obviously not possible to know exactly how effective they are until something goes wrong and CO is released, which will hopefully be never.

  87. GordonKetner says:

     United Kingdom

    Takes up very little room and it can be fixed to a wall or free standing. Very pleased.

  88. Anonymous says:

     United Kingdom

    I received this monitor the day after I ordered, easy to set up instructions and barriers were supplied. I can’t praise this supplier enough for being print and sending a great monitor.

  89. Anonymous says:

     United Kingdom

    These are compact and work well but I’ve taken a star off because the first one only lasted a year before failing completely. Other than that they work very well as far as I can tell.

  90. Deloris80C says:

     United Kingdom

    I got this on the advice of my gas man so won’t know if it works unless i have a carbon m leak-I have tested it and the alarm works-so fingers crossed

  91. KaiRutherford says:

     United Kingdom

    Bought as a replacement easy to set up and batteries included

  92. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersHad no issues, easy to just put batteries in and leave by the gas hob, gas oven and boiler. Haven’t heard it make a noise since which is a good thing! The sound test is very loud/works. Light is unnoticeable at night, can easily be tucked away, also has a very easy to install two screw mounting on the back option. Overall it lasts 10 years and it’s well priced for quality piece of kit with a good name brand so can’t go wrong. Didn’t want to get an off-brand or unreliable brand/random brand I haven’t heard of before since the alarm is the only way you’ll ever know of carbon monoxide, so wanted to spend on a reliable alarm.

  93. Scott Hayden says:

     United Kingdom

    Replaced the one I got 10 years ago which served me well.

  94. Anonymous says:

     United Kingdom

    Item arrived quickly and as described by the seller. Only issue I had was getting the batteries in as one kept springing out, hence the 4 star rating, otherwise all good.

  95. CelsaFitzsimons says:

     United Kingdom

    This carbon monoxide alarm is very easy to use, good quality and was delivered well packaged. Easy to secure to the wall if not wanting this to be a mobile unit. Very loud piercing noise that would not go unnoticed if this needed to alert the homeoccupiers to a leak

  96. Anonymous says:

     United Kingdom

    Delivery was excellent the product was flimsy and trying to get the batteries in was difficult took a few goes to assemble

  97. Anonymous says:

     United Kingdom

    Only issue is that it should come with flathead screws. The roundhead ones that come with the alarm, scratch the back of the battery and they’re cheap too. Installation should never compromise battery safety, however as long as you’re not constantly hanging and removing the alarm from the wall, batteries will be okay.

  98. webteam-np says:

     United Kingdom

    I needed to replace my current carbon monoxide alarm so opted for the same make and model as I knew it worked. I just stand it on the wooden plinth above my door and it sits there quietly protecting my home.

  99. KieraSisco says:

     United Kingdom

    Only received this safety device two days ago, but it appears to be a well made product. I just hope it never needs to work in reality !!.

  100. JamalSherry says:

     United Kingdom

    Very easy to use and does what it’s meant to do. Good price