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

285 Responses

  1. Anonymous says:

     United Kingdom

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

  2. Anonymous says:

     United Kingdom

    Long lasting Carbon Monoxide Detecto
    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.

  3. EvanLTXxltqzmmq says:

     United Kingdom

    Replacement needed
    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.

  4. Rashmita says:

     United Kingdom

    Long lasting Carbon Monoxide Detecto
    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.

  5. Joni Blecher says:

     United Kingdom

    Second time of purchase.
    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.

  6. DarbyPaspalis says:

     United Kingdom

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

  7. Anonymous says:

     United Kingdom

    Second time of purchase.
    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.

  8. TarahX59koxo says:

     United Kingdom

    Every one should have one (if necessary)
    It looks good, is good value and a small price for safety.

  9. Anonymous says:

     United Kingdom

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

  10. Anonymous says:

     United Kingdom

    Carbon detecto
    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

  11. Owen Gough says:

     United Kingdom

    Carbon detecto
    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

  12. by Hanna Horvath says:

     United Kingdom

    Golden Review Award: 2 From Our UsersVery
    I 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

  13. Anonymous says:

     United Kingdom

    A must in all households
    I have two of these in my house for safety and peace of mind. One of them is over 5 years old which I test regularly and the battery is still going strong. Very good produc

  14. RachelUDLA says:

     United Kingdom

    Good buy, takes seconds to put up and working.
    Straightforward ordering, fast delivery, simple instructions, easy to put up and working instantly.

  15. Anonymous says:

     United Kingdom

    Helps to keep the house safe from gas leaking
    Gas leak alert…very pleased with this model had similar 7 years or so ago …replaced with a new one
    Fully recommended

  16. KashaTifewnut says:

     United Kingdom

    Easy to install Carbon Monoxide detector.
    So easy to put up and make sure you are up to date with your detector.

  17. ClevelaLudwick says:

     United Kingdom

    Easy to use and set up
    I really like this product and feel safer knowing I have a detector in my home now

  18. Lauren Walker says:

     United Kingdom

    Easy to install
    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.

  19. Anonymous says:

     United Kingdom

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

  20. LashawnTarver says:

     United Kingdom

    Does the job
    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.

  21. Anonymous says:

     United Kingdom

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

  22. JamisonRTB says:

     United Kingdom

    Works well and safe
    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.

  23. ShelaBurgmann says:

     United Kingdom

    Simple way to stay safe
    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.

  24. NoellaAdey says:

     United Kingdom

    value for money
    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.

  25. Anonymous says:

     United Kingdom

    A Must Have!
    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.

  26. Anonymous says:

     United Kingdom

    A Must Have!
    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.

  27. ClaritaAntoine says:

     United Kingdom

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

  28. Anonymous says:

     United Kingdom

    A must for safety in the home.
    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.

  29. Guest says:

     United Kingdom

    Does what it needs to do!
    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!

  30. Anonymous says:

     United Kingdom

    Life save
    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.

  31. Anonymous says:

     United Kingdom

    Does what it needs to do!
    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!

  32. Anonymous says:

     United Kingdom

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

  33. Bill Roberson says:

     United Kingdom

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

  34. Anonymous says:

     United Kingdom

    Stay Safe with Carbon Monoxide Alarms
    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.

  35. TerrencURE says:

     United Kingdom

    Stay Safe with Carbon Monoxide Alarms
    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.

  36. Anonymous says:

     United Kingdom

    This will replace an identical one that is due to need replacing this month..
    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!

  37. Anonymous says:

     United Kingdom

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

  38. Anonymous says:

     United Kingdom

    Compact and portable alarm
    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.

  39. Anonymous says:

     United Kingdom

    good reliable product.....
    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 !!!

  40. ErvinBirch says:

     United Kingdom

    Compact and portable alarm
    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.

  41. JanineMcAlister says:

     United Kingdom

    Bought as replaceme
    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.

  42. RoxannaYijwhgp says:

     United Kingdom

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

  43. The Running Bug says:

     United Kingdom

    Great!
    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

  44. Anonymous says:

     United Kingdom

    Great!
    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

  45. Anonymous says:

     United Kingdom

    Easy to set up - alright to install
    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

  46. Valenti4948 says:

     United Kingdom

    Easy to set up - alright to install
    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

  47. Anonymous says:

     United Kingdom

    Does the job
    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!

  48. Anonymous says:

     United Kingdom

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

  49. Kevin Fitzpatrick says:

     United Kingdom

    OK
    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.

  50. Anonymous says:

     United Kingdom

    Small enough to put on top of uni
    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.

  51. NolaDSVnpmn says:

     United Kingdom

    Small enough to put on top of uni
    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.

  52. PamelaKeister says:

     United Kingdom

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

  53. Anonymous says:

     United Kingdom

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

  54. Bryce Elder says:

     United Kingdom

    Easy to install and gives peace of mind
    We were able to stand this on top of the kitchen unit as it was in range of the boile

  55. Anonymous says:

     United Kingdom

    Great CO monito
    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.

  56. GordonKetner says:

     United Kingdom

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

  57. KeishaNolan says:

     United Kingdom

    Does exactly as described
    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.

  58. Anonymous says:

     United Kingdom

    Does exactly as described
    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.

  59. Anonymous says:

     United Kingdom

    Taking a sat off because the first one I bought lasted a yea
    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.

  60. Anonymous says:

     United Kingdom

    Safe from being poisoned
    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

  61. Deloris80C says:

     United Kingdom

    Safe from being poisoned
    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

  62. KaiRutherford says:

     United Kingdom

    Fast delivery
    Bought as a replacement easy to set up and batteries included

  63. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersWorks great as far as I'm aware anyway!
    Had 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.

  64. Scott Hayden says:

     United Kingdom

    Reliable and easy to fi
    Replaced the one I got 10 years ago which served me well.

  65. Anonymous says:

     United Kingdom

    Carbon Monoxide monito
    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.

  66. Anonymous says:

     United Kingdom

    Carbon Monoxide monito
    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.

  67. CelsaFitzsimons says:

     United Kingdom

    Easy to use and good additional safety
    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

  68. Anonymous says:

     United Kingdom

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

  69. Anonymous says:

     United Kingdom

    Peace of mind. ✅
    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.

  70. Anonymous says:

     United Kingdom

    Peace of mind. ✅
    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.

  71. OtisRobertson says:

     United Kingdom

    Just what I wanted
    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.

  72. webteam-np says:

     United Kingdom

    Just what I wanted
    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.

  73. KieraSisco says:

     United Kingdom

    Excellent Safety Device.
    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 !!.

  74. JamalSherry says:

     United Kingdom

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

  75. Anonymous says:

     United Kingdom

    Er……. Hopefully works, can’t test it….🤷🏼‍♂️
    Really no idea what to say here..?! Aren’t going to install it, as it’s for my folding camper with gas hob. If I wake up dead. I’ll know it really didn’t work.

  76. Chris Morris says:

     United Kingdom

    Er……. Hopefully works, can’t test it….🤷🏼‍♂️
    Really no idea what to say here..?! Aren’t going to install it, as it’s for my folding camper with gas hob. If I wake up dead. I’ll know it really didn’t work.

  77. EloiseAppleton says:

     United Kingdom

    Easy to fi
    When it arrived i fitted in minutes and it’s easy to set and test good produc

  78. Anonymous says:

     United Kingdom

    works out of the ca
    Just pull the protective film from the battery, and it is ready for the next 10 years, just wish my PC was as easy

  79. Erika Thomas says:

     United Kingdom

    Gas man liked it.
    Gave it 5 stars as I just assume it works. Purchased before our gas inspection as the gas man had mentioned on his previous 2 visits that we should invest in such an alarm. He liked it and his approval put us at ease.

  80. Anonymous says:

     United Kingdom

    Easy to sort out and tes
    Easy to install, good price I guess but first one I’ve bought for my daughter’s bedroom as she has the boiler on that room. Followed instructions. I haven’t put it on the wall, it’s in the airing cupboard with the boiler sitting on a shelf.

  81. Anonymous says:

     United Kingdom

    Good little CO detecto
    Use this as a portable detector in my Campervan. So far so good. Easy to use and decent quality

  82. Steph Panecasio says:

     United Kingdom

    Value
    It’s a good product & it’s value for money. The instructions are easy to follow & it’s easy to install. My old one broke down but this is much better & as a bonus it looks better too.

  83. Anonymous says:

     United Kingdom

    Value
    It’s a good product & it’s value for money. The instructions are easy to follow & it’s easy to install. My old one broke down but this is much better & as a bonus it looks better too.

  84. BridgetPRV says:

     United Kingdom

    Golden Review Award: 2 From Our UsersBest carbon monoxide alarm
    This is the second one of these that I have purchased and they are absolutely brilliant. My carbon monoxide alarm went off twice this year due to a faulty boiler and if I didn’t have this alarm I would have been in trouble!! If you don’t have one in your home I strongly suggest you get one. Better to be safe and these are relatively cheap to be fair.

  85. Anonymous says:

     United Kingdom

    Wall mounted or free standing
    Easy installation and clear instructions, although without a carbon monoxide leak it’s hard to fully rate but the audio test soun should wake the dead

  86. KobyDelgadillo says:

     United Kingdom

    Hard to know
    Value for money. Hard to review as you never know how good this product is until it’s called into use

  87. Pete Larson says:

     United Kingdom

    Important Safety Item
    Bought this for our caravan. Worth every penny. Very easy to install and test. Good battery life.

  88. Anonymous says:

     United Kingdom

    A life saver.
    This is a great and also a necessary item to use in conjunction with the small gas heater we use in our campervan. A+++++

  89. MindaGoodchild says:

     United Kingdom

    Great little alarm
    Bought this for safety. Works well and easy to attach to the wall. Great little alarm

  90. Anonymous says:

     United Kingdom

    As described
    Obviously I hope I never find out whether this will work properly, but item arrived quickly.

  91. Anonymous says:

     United Kingdom

    It’s for your safety
    Works a treat easy to install and it monitors 24/7 green light flashes every 30 seconds a must if you have a log burner or an old boile

  92. WinstonPKF says:

     United Kingdom

    CO Detecto
    Popular brand/model that’s easy to fit but take notice of the placement instructions. Not ‘tested’ it as (hopefully) we don’t have a CO issue. Useful to have but no substitute for regular appliance maintenance.

  93. Anonymous says:

     United Kingdom

    CO Detecto
    Popular brand/model that’s easy to fit but take notice of the placement instructions. Not ‘tested’ it as (hopefully) we don’t have a CO issue. Useful to have but no substitute for regular appliance maintenance.

  94. karenb says:

     United Kingdom

    Led carbon monoxide
    Bought this for my summerhouse as I got a galore gas fire In it just bought it to make sure that when we use the fire that there are no harmful fumes

  95. Anonymous says:

     United Kingdom

    Led carbon monoxide
    Bought this for my summerhouse as I got a galore gas fire In it just bought it to make sure that when we use the fire that there are no harmful fumes

  96. Gear Patrol says:

     United Kingdom

    Battery powered, fast out of the box use
    Flexible fast to set up product. Bought on recommendation of smart meter fitter due to gas use. Need to write the date on it as they say throw away after 10 years and replace.

  97. Anonymous says:

     United Kingdom

    Battery powered, fast out of the box use
    Flexible fast to set up product. Bought on recommendation of smart meter fitter due to gas use. Need to write the date on it as they say throw away after 10 years and replace.

  98. Anonymous says:

     United Kingdom

    Good quality detecto
    Needed a new detector to check if leakage of carbon monoxide.This seemed to be a good quality good value monitor.Hopefully apart from the initial test we won’t have a leak but nice to know it will warn us

  99. Anonymous says:

     United Kingdom

    Good quality detecto
    Needed a new detector to check if leakage of carbon monoxide.This seemed to be a good quality good value monitor.Hopefully apart from the initial test we won’t have a leak but nice to know it will warn us

  100. LeonaBRKJku says:

     United Kingdom

    Good product.
    This item arrived well packaged and on time. Placed in the house to give the protection I was looking for. Well pleased, good purchase..