Kidde Nighthawk CO alarm. £7.00 at Homebase
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Kidde Nighthawk CO alarm. £7.00 at Homebase

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Found 23rd Dec 2017
Found online in clearance section. Availability looked good - 4 out of 5 of my nearest stores have stock.
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I removed the batteries from mine. The loud noise was making me feel sick and giving me a headache.
27 Comments
Where is best position to put it? On the ceiling?
Where to install your carbon monoxide detector
Fit your alarm high-up in the same room as the potential source of carbon monoxide, around 15cm from the ceiling and at least one metre away from boilers, cookers and fires. But make sure it’s not directly above a source of heat or steam. It doesn't need to be fixed to a wall, and a shelf is often suitable.

Read more: which.co.uk/rev…ors - Which?
Going for one tomorrow thanks
The cheapest one on ebay (of this specific model) is £14.99 and they've sold almost 2,000 of them. Looks like a good deal at less than half that price.
ebay.co.uk/itm…--B
davening1 h, 4 m ago

Where is best position to put it? On the ceiling?

I am a retired ex gas engineer. Please read the the instructions carefully. Then read them again. Keep the instructions safe for future reminder
Disco.Dave31 m ago

I am a retired ex gas engineer. Please read the the instructions …I am a retired ex gas engineer. Please read the the instructions carefully. Then read them again. Keep the instructions safe for future reminder


I am moving into a place and realised its on the ceiling in kitchen beside the ceiling light.
Previous place, it was at shoulder height and I can press the buttons.
But the ceiling?
Disco.Dave37 m ago

I am a retired ex gas engineer. Please read the the instructions …I am a retired ex gas engineer. Please read the the instructions carefully. Then read them again. Keep the instructions safe for future reminder


If you need to read it twice there’s no way you’ll remember where did you put the instructions
davening1 h, 28 m ago

I am moving into a place and realised its on the ceiling in kitchen beside …I am moving into a place and realised its on the ceiling in kitchen beside the ceiling light.Previous place, it was at shoulder height and I can press the buttons.But the ceiling?



I don't think it matters where the detector is, other than where it is convenient to operate buttons, or read display. AIUI carbon monoxide is about the same density, or slightly less, as air. So it will mix readily with the air in the room. If the detector is on the ceiling it shouldn't be an issue.
great price. every home should have one
Just to let you know these may be marked up at £15.98 in store. We searched high and low for these the other day as I'd seen then on the homebase website. Heated added (even though I'd already bought one - tis the season of goodwill and all that )
VDisillusioned:


I don't think it matters where the detector is, other than where it is convenient to operate buttons, or read display. AIUI carbon monoxide is about the same density, or slightly less, as air. So it will mix readily with the air in the room. If the detector is on the ceiling it shouldn't be an issue.

So your saying being able to reach the detector is more important than it detecting CO? That's rubbish and is dangerous advice. CO won't just 'mix' with the air, it will form a layer close to the ceiling due to the fact that not only is it lighter than air, but it's also coming from a heat source.
Follow the manufacturer's instructions.
Yes follow the instructions everybody - there is no point in having one if it's going to be put in a position where it does not detect anything as soon as it possibly can.

I have one in the living room (where I have a back boiler) and one in the kitchen.
These are old stock AA batteries. There's a new law stating fixed sealed 7year minimum only.

Having said that, better than not owning one at all..

Just don't nick your batteries out of it for your remote!!

Hence the law for sealed 7 and 10 yr lithium
Been meaning to get one.
craigstephens3 h, 20 m ago

VDisillusioned:I don't think it matters where the detector is, other than …VDisillusioned:I don't think it matters where the detector is, other than where it is convenient to operate buttons, or read display. AIUI carbon monoxide is about the same density, or slightly less, as air. So it will mix readily with the air in the room. If the detector is on the ceiling it shouldn't be an issue.So your saying being able to reach the detector is more important than it detecting CO? That's rubbish and is dangerous advice. CO won't just 'mix' with the air, it will form a layer close to the ceiling due to the fact that not only is it lighter than air, but it's also coming from a heat source.Follow the manufacturer's instructions.



So I say to davening it should be fine if the detector is on the ceiling, and you say no the detector should be on the ceiling. Alrighty then
VDisillusioned1 h, 12 m ago

So I say to davening it should be fine if the detector is on the ceiling, …So I say to davening it should be fine if the detector is on the ceiling, and you say no the detector should be on the ceiling. Alrighty then


They shouldn't be on the ceiling. They should be on the wall high up, no closer than 150mm. They shouldn't just be where you can get to them (ie head height) or they won't sound until co has already accumulated down to that level. Check the regs.
For anybody trying to get these in wrexham, they are on the top shelf with no price marked on them - just check sku number
craigstephens2 h, 12 m ago

They shouldn't be on the ceiling. They should be on the wall high up, no …They shouldn't be on the ceiling. They should be on the wall high up, no closer than 150mm. They shouldn't just be where you can get to them (ie head height) or they won't sound until co has already accumulated down to that level. Check the regs.




Some CO monitors are ceiling mountable, for example rselectricalsupplies.co.uk/kid…332

So there is no reason why the CO monitor in davening's new property should not be mounted on the ceiling. If it is designed to be ceiling mountable.
Edited by: "VDisillusioned" 24th Dec 2017
For anyone In Bristol who wants these there are loads in the store however it took 20 mins to find as they aren't with the alarms they were down near the paint section hanging down off the end of an isle
DBO18742 m ago

For anyone In Bristol who wants these there are loads in the store however …For anyone In Bristol who wants these there are loads in the store however it took 20 mins to find as they aren't with the alarms they were down near the paint section hanging down off the end of an isle

Explained why I couldn't find them at the store near me. Online showed 24 available in store but they weren't where the other alarms were. I'll try again next time they're opened.
I removed the batteries from mine. The loud noise was making me feel sick and giving me a headache.
GaryDIY6 h, 2 m ago

For anybody trying to get these in wrexham, they are on the top shelf with …For anybody trying to get these in wrexham, they are on the top shelf with no price marked on them - just check sku number


Any idea of the sku number please?
Thanks for all your help and suggestions.
I also live nr a Homebase, will look around there.
I read that CO is lighter than air and hence in room where is the boiler, high up is ok but in a room, where there is no boiler, head height is ok.
This might explain different recommendations.
Thanks to all.
Anyone have the sku code from this item?
Maybe on the receipt.
Nighthawk CO Alarm with Digital Display
SKU: 377064



It's on the website
trying to make sense about this stuff, my understanding is that if it does not reach a certain level you are never aware that there is CO around your home, the display would always say ZERO to then jump at 50-100-150 and so on and depends of the severity of the CO around.
I also tried to test with my cooker which at full output must be a matter for concern if left on for long time, over 10kw output. Well, the meter was held more or less for 10 minutes to try to get as much CO in to it but nothing happens, lol.
How can I make a reliable simple test?? Just want to know if there are small percentage of CO. Saying so, a cooker at full output must produce some high level of CO if I am not wrong, only want to make a test and not getting suicide.

If this is the way they work, then they are rubbish hence the reduction in price. Obviously the purpose of it is for these that leave the central heating on at night which in my opinion and since the 90's they are safe 100% but saying so I would not leave it on at night. Well, how do I detect if there is a small problem??
These other that do leave the wood to burn in the fire place at night are obviously not that very clever if the rely on the functionality of a CO meter.
I just bought one for testing, nothing else but what a disappointment. Anyone advice would be appreciated if possible and in case I am doing something wrong.
Tried the free number helpline twice, no answer after being connected for few hours.
Edited by: "neroneuk" 8th Jan
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