Carbon Monoxide Detector Deals

Carbon Monoxide Detector Deals & Offers

270 deals4,442 comments
NEST Thermostat + Smoke/Carbon Monoxide Detector @Toolstation in-store (Redditch) - £213.98
LocalLocalFound 24th SepFound 24th Sep
Just saw this in store in Redditch. Unfortunately didn't have my phone with me to take a picture. This is a combination of their in-store price reduction for the Nest bundle to 248… Read more

That's what they told me at the till


Yes, but the price reduction doesn't constitute an offer as such, or so they said. Did they try to put it through the till?


Just went into store and the £35 off is "not to be used in conjunction with any other offer".


No worries, thanks for the reply.


Didn't check, sorry. There may be both options available.

Buy two wired/battery-powered Nest Protect Devices for £162.00 @ Travis Perkins
Found 27th JulFound 27th Jul
Decent price for the wired Nest Protect if you are planning to get two. Works out at £81 each when you use the 10% off voucher (only possible if spending £150 or more exc. VAT). Ca… Read more

Customer services are reporting back as OOS for the wired version with no ETA


Heat from me. I bought one of the BT Shop ones and fitted last night. It's great. Even the wife approved. So need to get another 2, one for the loft which has some wiring I can use, and one for the ground floor, which needs a battery one; and looks like I can get one of each and still do the discount. Thanks, OP!


That’s a great deal for a great product! Luckily I said “usually” (excited)


Well obviously I don't know what future purchasers will get, but I ordered two 3 days ago - they are due to expire in May 2028. So I lost 2 months yes, but not in proportion to the discount! :)


Usually if the price drops it’s because they are old stock, so you don’t get the full 10 years of life. Therefore the price is just a percentage. Two years old stock, pay 80%.

Nest Protect (Battery) for £79 after using discount code @ BTShop
Found 26th JulFound 26th Jul
Great price on Nest Protect, for battery powered only now (wired ones out of stock).

For me, my wife has a habit of leaving the cooker on, leaving the fridge door open, leaving the light on. I love her to bits but she is annoying at times like these, hence for me all this helps!


Bought from your other link. Nice one buddy. (Y)


Pretty sure the rate of house fires is higher than that. This does have other functions as others have elaborated upon.


When the chance of your house catching fire is a million to one why bother spending that much on a smoke detector when a 5 quid one will suffice


I have literally no idea what your point is. Are you saying nobody should have smoke alarms because the noise is annoying? It’s a smoke detector that self-tests and alerts you to alarms while you’re out of your house. It also speaks first rather than irritating you when you burn toast. The motion activated soft light is also awesome when I get up to drain the dragon in the pitch black. I leave my dog at home sometimes so I like the peace of mind to know if the alarm goes off and to call the fire dept and get the hell home ASAP. I’d say they’re worth every penny. I have 3 and love them.

WhatsApp Alerts!
Deal Alerts!
Oops! Looks like we couldn't connect 😢 Please try again!
To sign up: add to your mobile contacts, then text us 'Start' via WhatsApp
FireAngel Smoke + Carbon Monoxide detector £18.99 instore @ Screwfix
LocalLocalFound 21st MayFound 21st May
Reduced in the pamphlet that arrived today. Seemed to me to be a good price for a combined unit Battery operated. 5 year guarantee Possibly online too.

£30 again now


Bought! Thanks OP needed something like this! Got tcb as well so another 20poff lol


Carbon monoxide detector should be close the unit, like boiler (which are usually place in the kitchen or bathrooms) or solid fuel burners. Smoke detector should be away from kitchen. It save the trip switching alarm off every time the toaster is on or frying pan. Kitchen- only heat detector + carbon monoxide if boilers present, Corridor, bedrooms- smoke detector,


More CO risk from open fires/log burners, which is why they are required for any new appliance nowadays


Awesome deal, these should be fitted as standard in all homes with a gas supply.

Nest Protect 2nd Generation Smoke & Carbon Monoxide Alarm - Battery or wired, 2 for £151.60 or 1 for £78.28 @ Priority Plumbing with code LUCKY
Found 13th AprFound 13th Apr
I just fitted 3 of these and they are excellent. The battery-powered ones apparently have a battery life of several years. Link is for battery version, here is link for wired ver… Read more

Ordered 2 online for delivery on the 17th. Thanks OP been looking for this for a while.


Got my price-match request approved on 3rd attempt(was rejected for pricematch requests for Wolsely and Maplin). I need 4 of them...will place my order on JL now... Thanks OP


If they agree a price match you can get up to 10 of the items


Good to know, I've just put in a request also to them so hopefully they respond, but I've said that i actually want 3 of the items (couldn't see a wired 2x pack on PP site). We'll see what they say!


I just got John Lewis to agree to a price match: Thank you for your price match request for the Nest Protect Smoke + Carbon Monoxide Alarm, Battery. I have looked into your request and will be happy to match the price of £78.28 for the smoke and carbon monoxide detector(product code 83870307) seen at Priority Plumbing. To place this order with us please visit our website. When you have received your items and are satisfied with your purchase, please let me know by return email.

Nest Protect 2nd Generation Smoke and Carbon Monoxide Detector (Battery + wired) £76.30 @ maplin (in store only)
Found 12th AprFound 12th Apr
Please check stores Frist to make sure they have them. Same as the nest thermostat none local to Liverpool but some in surrounding areas good price for if you get one Wired link Read more
Get dealGet deal

I had a no stock by me either


No stock anywhere down south. (mad)


No problem (y)


Thanks OP!


Apologies I must of read it wrong :D

Deal Alerts!
Want the hottest deals in your inbox?
Subscribe to receive an overview of the hottest deals posted each day.
Carbon monoxide detector - £12 @ Wilko
Found 17th MarFound 17th Mar
Carbon monoxide detector
Get dealGet deal

It has brought it upon itself


Is the most ridiculous comment i’ve read in years...


The Titanic conformed to British Standards.


Can it detect farts?


It's a Which? Best Buy.

Kidde Carbon Monoxide Alarm with Digital Display (£14.54 includes delivery for Prime members) £18.53 Non Prime
Found 17th MarFound 17th Mar
Seems to have great reviews. Haven't seen it cheaper recently as have been looking for one for the past two weeks. Next cheapest I found is £15.84 but doesn't include delivery.
Get dealGet deal

I would like buy a carbon monoxide detector. The flat already has two smoke alarms connected to the electricity system. But both are very close to each other which doesn't seem good to me. They go off sometimes for no reason I always wonder if it's something from next door? Its a converted house so next doors boiler flue exit point is next to my single glazed bedroom window. So I smell boiler flue all the time and even laundry detergent smell when standing outside my front door which is just below the bedroom window. My boiler flue exit point is just above their kitchen. I would like to get a carbon monoxide detector for my bedroom but can I move the detector to another room from time to time and leave it on a table or countertop? Can I also just leave it in the bedroom on a table or on top of the wardrobe? Rather than having to fix it to the ceiling. Thank you for any suggestions. I have zero DIY skills and am learning a few basic skills slowly...I have learnt that the plasterboard walls don't need a drill I would wreck the plasterboard so I just use a screwdriver to put up a bathroom cabinet or mirror. So that I can do hopefully....


Thats perfectly normal


Take it outside and hold it in your car exhaust, with the engine running. That'll soon tell you if its working


Does anyone have one of these?, i have one and it never seems to read any reading on the LCD display at all always shows '0.00' surely it should be reading a very small amount of Carbon monoxide in the air at all times even if its '0.02' or something, so not sure if mines faulty or not!??


Not true

Kidde 10LLDCO Carbon Monoxide Alarm Digital Display With Sealed Battery £17.19  (Prime) / £21.18 (non Prime) at Amazon
Found 7th MarFound 7th Mar
best price on amazon. >50% off Digital display that shows current CO levels (from 10ppm) 10 year sealed battery 10 year manufacturer's warranty

I have this one it is great (highfive)


Due in stock 10 March at £17.19 (y)


Oddly, when I follow the "Get Deal" link I can't see it sold by Amazon but when I then search for the ASIN direct I can. Maybe because I have already bought one - but want one for mother. Sorry HUKD for the lack of affiliate kick back!


The 10LLDCO is a sealed unit with a 10 year warranty, which has to include the battery as it is not a user replaceable part. The spec quoted above is for a (7DCO) unit that has user replaceable batteries. I bought this same unit for twice the price four years ago and luckily so far I have not seen any tigers.


Yeah, but it's not a 10 year battery; I made exactly the same mistake until I took a closer look. It's a 10 year warranty on the sensor.

Nest Protect, Smart Smoke + Carbon Monoxide Alarm (£99.95) £85.01 with code see op @ Toolstation
Found 23rd JanFound 23rd Jan
Purchased using their £15 off 'JAN18PROMO' discount code (thanks to MayaForrester!): • Code is for purchases over £100 so you need to also add something else to your basket first (… Read more
Get dealGet deal

Offer is back on at £86.01 (£1 more than before) with new VALENTINES18 code. Same £100 spend requirement. Valid until 22 Feb.


I guess a lot has to do with the room size and the proximity of the alarm to the fire etc. At home the alarm is in the hall, if we burn any food in the adjoining kitchen, the alarm activates within a very shot time.


Expired 😰


Been after another for a while now, Cheers OP, HEAT!


Ordered thanks

Kidde Twin Optical Smoke & Carbon Monoxide Alarm Set £12.95 (£16.90 with P&P) @ Tooled - up
Found 12th Dec 2017Found 12th Dec 2017
Offer includes Duracell batteries! Features & Benefits • Protects against the dangers of CO poisoning and fire • Easy to install • Includes batteries • Loud 85 decibel alarm… Read more

bit cheaper


Fantastic deal. I been looking for a spare smoke alarm as my friend had a kitchen fire and the smoke alarm filled my the local Fireman didn’t go off until the flames were licking the sealing. So I think I will get a couple more just in cast. Be safe don’t be stingy when it comes to safety merry xmas everyone xxx


4% off via Quidco


Look good, any free delivery codes?


Thank you for uploading paid 18.00 just for the carbon one which broke after 2 or 3 months after it's 10th drop. Amazing value for this make plus batteries.

carbon monoxide detector alarm, with LCD display, 3xAA £5.25 Del @ ebay (sold by VJK STORE)
Found 8th Dec 2017Found 8th Dec 2017
this one from Ebay UK Peace of mind for your gas appliances, LCD shows Parts Per Million. added bonus of using 3 AA instead of the expensive PP3 (9v) Highly rated by customer feedb… Read more
Get dealGet deal

It’s not got the correct British standard number so not fit for purpose you do get what you pay for in this case it may result in death do sleazy you will die happy thinking I saved money on my co detector


i honestly can't see the problem with giving the underdog a chance, and surely Kidde started somewhere? i bought this simply to do one job, so i tested it and it does it's job which is why i decided to share, i won't lie... i did consider going for a brand but considering the price difference at the time, this was my choice (same one from China but £4ish). i can fully understand why some of you choose how you spend when it comes to family and personal safety which comes down to personal choice, and i honestly commend that... but for those where it comes down to budget and costs, and having at least something instead of nothing in terms of safety, then this is the same device at a lower cost... i consider that as a deal, and i thought that was the purpose of this site. reading some of your comments i'm undecided if some of you are genuinely concerned for others safety or just scaremongering, if the item posted offends you then i can only apologise, i only intended to possibly let a few people know of a very important but affordable bit of safety they may not already have. had mine about 9 months now but wish i'd got one much sooner.


I have one of these - cost me a couple of quid from Aliexpress. I've not died of Carbon Monoxide poisoning yet so it must work ... Seriously though, buy a decent brand one. I've got the Kidde one for the house with is vastly better quality. The reason I bought the cheap one was just to monitor any dodgy CO in the car.


Wouldn't risk it for a couple quid


Looks just like the three "don't buys" on Which. (Binwo, Mudder and AZT Zaviour) They failed between 6 and 15 of the 24 tests Which put them through.

Nest® Protect 2nd Generation Smoke & Carbon Monoxide Alarm, Battery / Wired - £87.97 @ The Electrical Showroom
Found 28th Nov 2017Found 28th Nov 2017
Best deal I can find for a new Nest Protect Wired / Battery - CO2 and Smoke detector.

new? seller? 2nd gen?


I've managed to pick one up for £51.00 on ebay, booooom!


Clever device - vastly overpriced. The Nest business model. Once all the early adopters have one the price will plumet.


These also act as a motion detector for the nest thermostat to tell it you are in the property if you are on another floor or in a room where you don't pass by the thermostat to tell it your home. Your phone can also do this via geo-fencing but it's a nice extra to have - as well as the carbon monoxide detection along with the smoke detection and it also "self tests" itself every month and sends an alert to your phone to tell you that all is good. Also if it senses smoke you receive a message to your phone - and also another when (if) it clears ;-) Dave


I can't answer this directly but when I was calculating the cost for wireless connected alarms (due to the boiler being in the garage and a lack of a wired interconnect) the cost difference between Nest and a comparable system was negligible (4 alarms). The trouble is now if I want more, the ₤100 each is a little hard to swallow and you can't even properly test them without burning your house down! However I spend more on other rubbish so why not on my safety?

£23.90 Delivered - 10-Year KIDDE Carbon Monoxide & 2x Smoke Alarms Safety Pack £23.90 @ CPC
Found 20th Nov 2017Found 20th Nov 2017
Just spotted this deal on CPC Farnell as a part of their Black Friday deal. Selling for £34 on Amazon and £45 on Ebay so looks like a good deal.

Haven't had these a year and one smoke alarm randomly bleeps a few times so have replaced it for now Have contacted cpc twice with no response and have emailed kidde Anyone else having issues ?


Just rolled into work and they are here already :o Nice one cpc


In that case I have some wonderful alarms you can buy. Only 20 grand each thanks. Everything has a price. Including safety.


Rubbish. Sorry for being blunt, but I've had a number of CO alarms and they've never gone off, but if they had I would have spent some real time looking for the cause. No where near enough people have CO alarms, and its the invisible killer. Heat for OP. I have a £20 CO alarm, but would buy this pack if I didn't. VERY good to double check you've got enough alarms going into the Xmas period when people will likely have loads of candles and fairy lights increasing risks...... get them checked folks. ;)


The thing with the CO alarm is with a smoke alarm you can see what is causing it (toast) and go deal with the problem. If the CO alarm goes off what are you going to do, go stand outside and call a gas engineer out? No, you are going to debate for five minutes and then silence it and hope the whole thing blows over. So they are effectively a waste of time unless they warn you of imminent, severe CO problems instead of just using a hob or woodburner.

Carbon Monoxide Detector CO Alarm £5.99 (Prime) £9.98 (Non Prime) @ Sold by JIKAD and Fulfilled by Amazon
Found 5th Oct 2017Found 5th Oct 2017
**Expired due to concern of fake product**

Expired this due to concern that it may be fake product. Apologies to those who went ahead and purchased. Sam


Yep. Confirmed. Fake looking CE mark on the packaging & no hint of compliance with EN50291. Sending back with a recommendation they stop selling them.


Lots of similar looking ones were pulled by eBay some time ago after a tv program tested them and found they either didn't ever go off or the detection was so poor you would likely be dead by the time they triggered. Would avoid these if you value your life and that of your family.


The only way you can test properly is to have some carbon monoxide to hand, if it goes off then great but if it doesn’t then surely amazon should be held responsible for allowing these for sale.


Or Liverpool or Man U and so on.

Kidde 7DCO Carbon Monoxide Alarm Digital Display £14.50 (Prime) £18.49 (Non Prime) with 10 Year Sensor and Warranty @ amazon
Found 15th Sep 2017Found 15th Sep 2017
Kidde 7DCO Carbon Monoxide Alarm (replaceable batteries) Digital Display 10 Year Sensor and Warranty £14.50 with amazon prime and free delivery (Apparently) rrp £30.75 Been n… Read more
Get dealGet deal

Already posted 2 days ago.


Which model?


Price is nothing special, it's average according to camelcamelcamel:


Good deal if with prime! I just picked up a fire angel off ebay @ £15


great price! thanks

Kidde 7DCO Carbon Monoxide Alarm (replaceable batteries) Digital Display 10 Year Sensor and Warranty- £14.50 Amazon- Click and collect
Found 13th Sep 2017Found 13th Sep 2017
Decent price drop- The Kidde KID7DCOC continuously monitors for the presence of deadly Carbon Monoxide in the home providing a constant protection against its effects. As well as… Read more
Get dealGet deal

We have some of this model in our house. The best thing about it, in my opinion, is that it will show you the peak-reading. So you'll know if there's been a recent high concentration of CO even though it wasn't enough to actually trigger the alarm


Just fitted a log burner and had to fit one of these to meet building regs, paid about£35 so this is a decent price!


great deal, i have one in every room where gas is burned and an additional one in the landing too.


I bought one of these after reading that reddit thread of the guy who was writing himself messages and didn't realise due to carbon monoxide poisoning


Ditto that and invest in two if there is another fuel-burning appliance (especially if it is solid fuel) in a different room.

Kidde Carbon Monoxide Alarm £7.50 (was £15) @ Asda Walsall
LocalLocalFound 4th Aug 2017Found 4th Aug 2017
Includes batteries. Around double the price elsewhere and worth every penny.

I used my special device thingy to google it (y)


Yes, lol


Also in Colchester store, several there a few days ago.


I can't see the brand kiddie on the box :/ am I being stupid?


Quite literally a lifesaver. If you don't have at least one of these in your home, what are you doing?

First Alert Carbon Monoxide Alarm £7.80 @ Waitrose
Found 30th Jun 2017Found 30th Jun 2017
Just spotted this carbon monoxide detector. Looks good for the price especially with 5 years guarantee. The First Alert Carbon Monoxide Alarm will protect you in your home from t… Read more

Stick them in with any gas


About to move into my first house, which rooms would you recommend installing them?


A good buy, everyone should have one. I always take one on holiday and always sent my children with one for sleep overs etc, you'd be surprised how many people don't have them. 8)

  1. Voting

    Deal temperatures are the heart of hotukdeals If you think a deal is hot, vote it up by clicking the red plus. Otherwise, cool it down by voting cold.

    Tip 1 of 6

    Read what other members have to say about a deal and share your own opinion.

    Tip 2 of 6
  3. Add Deal

    Have you found a good deal yourself? Share it here and other members will vote on how hot the deal is.

    Tip 3 of 6
  4. Deal Link

    If you think a deal is hot, click through to the shop to snap up the deal before it’s expired.

    Tip 4 of 6
  5. Layout

    Find here other ways to view the deals. You can view it in either grid, list or text only view.

    When clicking this gear icon you can find other ways to view the deals. You can view it in either grid, list or text only view.

    Tip 5 of 6
  6. Main Menu

    Through our main menu you can navigate to certain categories or shops you are interested in.

    Tip 6 of 6