Does your Carbon Monoxide Detector really work?

[@Bigfishfun333]

When people are pimping a product for sale, I usually always ignore their recommendation.

[@kristlewilson9719]

You sprayed it directly on your product.. Not sold.

[@3dmixer552]

Or just too sensitive and gives false alarm.

[@scratchandwinner]

You sprayed it right on the first one. No wonder it went off.

[@sammcclive3656]

A fairer test would be to place each detector in the bag alone and see how long it takes to respond to the CO. By placing all three in the bag at the same time, you're spraying the CO Expert first, so it could have just gone off first because the CO hadn't propagated through the bag to the other 2 yet. Could you re-do this video showing what happens if you do all three independently?

[@Keshaire]

Sam McClive Actually no. If you are in a house your alarm won't get sprayed with pure carbon monoxide before anything else. Just because you want to be cheap doesn't mean physics are non-existent.

[@Keshaire]

***** Actually no. If you are in a house your alarm won't get sprayed with pure carbon monoxide before anything else. Just because you want to be cheap doesn't mean physics are non-existent.

[@ToontownTelegraph]

+Keshaire!!! No need to reply constantly. Could be considered spamming.

[@otsouycoco4418]

maybe it went off first bcoz CO was sprayed just right next to it. the one behind is not reading it bcoz CO was blocked by the one in-front.

[@claudiacorona3688]

Bro you added the spray right towards the one that beeped, of course is going to beep first n only

[@neilbrookins8428]

Two problems with your test: The bag was pressed on top of the openings on the detectors which blocked airflow into the sensor. You need to have space between the bag and the outside of the detector. Second problem is that CO does not mix easily in air - its kinda like thick soup -- so it takes time to migrate from the corner of the bag to the other end. One additional point is that the time to alert is proportional to the concentration (ppm). It's not supposed to alert as quickly when there is a lower level detected - this is so that you don't get false alarms. You wouldn't want the detector going off every time the oven is turned on would you? So being more sensitive is not always desirable. In fact, false alarms lead to people disabling alarms which leads to not getting alerted for a real emergency. Don't underestimate the danger of false alarms.

[@mb106429]

Neil Brookins correct

[@Bigfishfun333]

Best post of the day.

[@echoserenade]

literally sprayed directly onto the one that went off first.....man finding a legit review

[@Bigfishfun333]

The other two alarms are likely NOT triggered, not that FAST at least, with the small amount of CO you sprayed in there.

[@MK-kz9pp]

The Mythbuster would be very disappointed with this experiment.

[@patfraser2093]

Mykola Kramp

[@Toongeek45]

The first alerts are not broken. A CO detector only goes off immediately if it reaches its peak level. Otherwise, it will wait a certain amount of time, usually 15 minutes, to see if it remains steady. If it does, then it will go off.

[@trance183]

Awesome so now I'll be dead by the time it goes off. At least my ghost will be fairly warned. :)

[@jameskilrain38]

Good point and I have a First Alert carbon monoxide detector.

[@Fredengle]

Hi Got a question for you if I have natural gas or propane my question is do you think co alarm provides adequate protection I mean the opinion of a retired firefighter was that natural gas or propane you are going to be able to smell it so his idea was he thought that he seemed to say that he thought what was important was to have adequate co alarms ! he said he thought something that detect natural gas or propane was only going to be useful if you have diminished sense of smell thoughts please thank you! I mean if I an unable to afford a low level alarm do you think the above advice is correct thoughts please thank you!

[@JamieR2077]

Remember these are made to go off after a certain amount of time at certain levels, it's something like 4 minutes. This is to prevent false alarms and so it doesn't "cry wolf" too much causing people to not trust it.

[@EugeneKulinek]

Not all of them have the same distance to CO. Test invalid

[@Bigfishfun333]

An alarm that goes off "first", if it goes off real quickly, might be too sensitive....if it's too sensitive the real world is that people get frustrated with them going off all the time, and get rid of them - so they have no detector at all.

[@hanslexie1111]

U pointed and sprayed it at the co expert!

[@docfaceful]

Dude you sprayed it right into the one that went off.lol.i mean you can say " day all in da bag!"

[@angelacurtis7922]

Today my kidde smoke and carbon dioxide detector awaken me this morning. Fire dept. called and they detected nothing. It went off again a 3rd time while they were here. It’s dated for 2016 and to be good for 10 years. I open this new box March 2021. It never alarmed before. The battery is life long and not changeable. I had no humidity, my pilot light was blue not orange or yellow that would indicates positive CO but none detected. I had slight headache after I think hyperventilating fresh cold air. Direction state to leave out of house immediately. Because fire department detected no co I’m trying to figure out a reliable smoke and co detector.

[@auungbong]

I have the same issue. Gas company came out 4x since last month. No one can find the source

[@michellearsenault6732]

Could that one have went off first because you sprayed closer to that one, rather than spay in the middle of the barge so all 3 if possible would have the same contact at the same time.

[@foxygamingyt4757]

I did not know that they even sold cans of carbon monoxide. I thought they only sold cans of smoke. Thank you for showing it. A new idea just entered my brain, Test my carbon monoxide detector.

[@d.mendonca886]

I like how he was going to spray it at one end then he switches it to the other end and where he sprays it is the first one to go off he is probably advertising that brand just call fire dept. they would tell you a good one

[@masterflava4270]

u can see the bag filled with co2. i guess is everywhere in the bag

[@claypf4795]

Hey Dave, if you place the low-level detector at the back of the bag, away from the nozzle straw of the botte of CO2, does it change the result? It looks like you sprayed directly into the low level detector.

[@neilbrookins8428]

The UL rating for behavior at 400 ppm says that it must alert within 15 minutes. That means after 14 minutes if it hasn’t alerted you have not yet failed the test. If it alerts after 14 minutes and 55 seconds then the test passes because it alerted in under 15 minutes. You are claiming that these alarms not going off is a bad thing. But that behavior is allowed by UL rating during the first few minutes. In fact, at lower ppm if the alarm goes off too soon it will fail the UL tests. Example at 200 ppm UL alarm must sound between 30 and 60 minutes. If it sounds too early at just 29 minutes then it fails the test.

[@TurboSpeedWiFi]

The point is that the UL test is not necessarily optimal.

[@mbgrafix]

David, Can you please explain why Consumer Reports does not give the warning that you are giving?

[@johnmiller-in5bt]

you sprayed the carbon monox right at the one that went off first. thats why it read first. try them one at a time ! and time them. or spray right at each one.

[@adamg8194]

lol delete this video dude.. redo this experiment.. but you probably dont want to because then it wont show skewed results. you literally sprayed the stuff on your detector

[@amoora3292]

I believe it would be better to put in seprate bags for accuracy

[@VinceCurtis]

Where did you get the CO spray ?

[@anyprivatename]

This test is not a correct test . Because the gas injected closer to the worked one

[@rayskaggs7543]

I agree with Kristle, it's a trick a slide of the hand.

[@EaglesFan4NRA]

Suspicious way of doing this test...you have to take this guys word for everything. Your best bet is to visit or call your local fire department and gas/electric providers. Ask them to come out to your home and ask them what they recommend. They will usually help you for free.

[@fartymarty-mq3is]

how high should it be on the wall

[@glynnsclips5556]

Not a good way to test.! You know you should have tested separately!

[@SuperBeastGL]

This has to be one of the worst experiments I've ever seen. Putting all of them in the same bag means you're testing 3 variables at once so the outcome is meaningless for several reasons. Firstly you sprayed it directly on the detector you are trying to sell, secondly you didn't cover how each one detects CO, some use a chemical reaction that results in a gel changing color which is detected using an LED and sensor. That means that it is possible that (in a tiny baggy with an unmeasured amount of CO sprayed in) as the CO disperses it came in contact with the first CO detector which could possibly have decreased the concentration of CO by consuming some amount of it in the chemical reaction that results in a change of color. A good test would have been to take each detector put them in separate vacuum sealed bags with a one way valve then inject the exact same amount of air with a fixed CO concentration into each bag and measure the time in seconds it takes for the alarm to sound. If one didn't go off, safely dispose of it and get another of the exact same kind and perform the test again with an increased amount of CO. BOOM SCIENCE! It really isn't that hard. If you weren't a simple installer/repair man and were a real scientist with access to a real lab then it would probably be a good idea to use an air mixture that simulates the expected concentration of air in a normal room. I.E. make the air you are testing contain an exact mixture of CO, O2, CO2, N... to rule out any other variables while most accurately simulating a real world situation.

[@beenanevin9159]

not fair because you put the other two at the back

[@Keshaire]

ash alex Actually no. If you are in a house your alarm won't get sprayed with pure carbon monoxide before anything else. Just because you want to be cheap doesn't mean physics are non-existent.

[@a1face331]

ash alex I agree

[@andym1223]

the first alerts meet the specifications required, so that is good enough for me

[@kevinisawake]

TEST INVALID - should have sprayed more CO into the plastic to make the other two slow runners beep......that way they would have been no doubt that batteries where installed.

[@thegoldenland]

I put CO detector at my car exhaust while engine running. My CO detector showed 0. Anyone tried like that?

[@metallampman]

Does CO expert detect LP or natural gas leaks too ?

[@CosmoTube]

Wow! - That is a pathetic attempt at a test, which is at least biased or at worse fraudulent. I wonder if he is financially linked to the CO Experts company? This video should be removed.

[@timamyett9679]

The way that you have those alarms situated in the bag yours got the full direct blast of Co and the others didn't get that much at all so I feel like this is a gimmick test.

[@darrinrentruc6614]

My bullshit detector went off on that tast

[@patridomino9036]

Would have been fairer test to have tried each unit separately in the bag, sprayed in the same place.

[@Ham549]

They sell cans of CO gas?

[@Mercury1955]

Well crap you sprayed it right on the first detector and there isn't really anything in the bag to quickly circulate the inside air to the other two detectors. Do this again with the other first detector in the back and see if same results occur.

[@Fantech0104]

After seeing some videos on the first alert CO alarms I see that the first alert alarms don't seem to work well.

[@michellefoster4260]

Sorry video! reason you have so many thumbs down you didn't spray enough into the bag and the only reason the first alert went off is because you spray direct on it so of curse it's going to go off. I'm not sold, do better the next time.

[@bobsutube]

Agree with others - put YOUR product in the bag last, then spray the CO directly into the vent of one of the First Alerts at the front of the bag - just add you did with yours

[@bobsutube]

I take back what I said above. On real world testing, First Alert are inadequate. From their documentation, and other people testing on KZbin, by design, the First Alert make take 15 mins to alarm even if completely immersed in a CO saturated environment. Thanks for the test, you should better explain why you are seeing rite results

[@joesk9064]

For clarity, Does that also include propabe tank leaks

[@davidmanning2921]

You wouldn’t make a magician. The hand needs to be quicker than the eye.

[@kevonwilliams1925]

This test is so cheap because first I own a first alert alarm with a display like the one in the video and it would have shown a reading even if it wasn't high enough to sound the alar

[@roymillar4895]

I surprised this vid is still up with the feedback it got. Detectors in a bag is not how to test these alarms

[@Bigfishfun333]

Ok, how DO you properly test CO detectors?

[@bobobrazile1608]

Be nice if you sprayed t directly on the others as well.

[@1quickgt]

Where do I get one of your CO detectors?..Thanks!

[@WideOpenChange]

If you think yours doesn't work. Just put it next to your car exhaust.

[@mikecsolak4427]

car exhaust is to high. it will ruin it

[@RalphsHeating]

He sprayed into the bag not on the sensor. There are 2 low level detectors available that I know of and they are well worth the investment. You still need a UL listed item by law I believe. The low level models I think are considered more of a tool.

[@leochen4891]

If you need to test like this, I will never trust this product

[@colonelradec5956]

this is the high end one its way better. proceeds to spray it directly in the face with gas 😂 thats a stupid test lol. a real test is put them all in a room fill with actual gas. not hard at all.

[@daxmenardo]

The other two didn't have batteries :)

[@grapiken7766]

So this is an advertisement.

[@hkflyer]

An unfair test.

[@Keshaire]

***** Actually no. If you are in a house your alarm won't get sprayed with pure carbon monoxide before anything else. Just because you want to be cheap doesn't mean physics are non-existent.

[@andym1223]

+Keshaire!!! quit repeating yourself

[@Keshaire]

andybub45 Chap, the reason I'm repeating myself is due to the fact that it works. What I said is too true, why would I change my story?

[@mikehunt2190]

They add it to natural gas and propane gas to detect leaks., What carbon monoxide is a gas caused by incomplete combustion of natural gas, propane, gasoline, or any other hydrocarbon. Think of carbon monoxide as a gas created by incompletely burning another gas like propane or natural gas.To explain it further would be a long lesson in organic chemistry.

[@aPatluv]

Thank you for your life saving test. I wondered about this because of 6 carbon monoxide injuries and 1 death in a 15,000 sq mansion in Oak Brook, Illinois January 2014. Fire officials said the carbon monoxide detectors were "not functioning". I wondered how could that be. The source of the C01 was a pool heater. And Yes, I bought my 3 separate brands of C01 detectors at big box stores. Now I know... So I'll be looking for better detectors.

[@thetruth3164]

Please what the name of the carbon dioxide detector you recommend ? thanks you.

[@BruceOBruce]

i think they're onto you man

[@derekguidry9032]

Yea this dude looks shady as well as the experiments or black magic he performed.

[@bobo888bobo]

where can I buy a can of carbon monoxide? Is there a way to test a detector without it? I have had several CO detectors and they do not seem to work. I put them in my garage with the door open and a car running nearby with the exhaust facing the detector and the display reads 000. I have also put them directly in the exhaust and they still show nothing. I am not expecting an alarm, but showing no CO does not give me confidence. thanks

[@Bigfishfun333]

Catalytic converters convert CO to CO2, and don't go above 100 PPPM CO, if I recall correctly. So car exhaust would arguably not give a guaranteed result.

[@jamesr5569]

Terrible demonstration. Let's just spray the CO Expert sensor!

[@CL-ii9cx]

what is the name of low level item that made sound quickest?

[@donnamaybel]

Thank You

[@harrysamuel2]

First carbon monoxide is a COLORLESS ODERLESS GAS that can kill you. The video shows how to test your detector, AND do it outside ! the can used is an Aerosol can for Carbon Monoxide Detector Testing. Mine always reads 0 so this is just what I need to test it in the backyard where I can't hurt myself. Always test outside.

[@technicalmullaofficial3294]

Very nice mashallah bhai

[@gerrymcadams7517]

how do I get one of your detectors? good video

[@nacafireandsecuritymore9971]

don't forget a boiler

[@ExitSign250]

On the upper floor

[@mehdiseferov5923]

Can I have it in the bathroom?

[@jameskilrain38]

They recommend having a C.O detector outside the room where you sleep.

[@patrickjordan5055]

Multi station smoke detector commercial KZbin video, life saving products

[@ashleighkeator]

For those of you wondering about spraying the CO expert sensor, this could have a difference in which one responds first. BUT you must remember that gases distribute freely throughout a space. Therefore, if the CO expert had gone off and then maybe there was a delay in the others, then I would consider there to be too many variables. I think the whole idea was to show low level detection vs high levels. Not brand advertisement. I am actually looking at changing the one that was given to me by my landlord.

[@kasparovthegodofwar]

Hundreds of ppm and no sound Go figure

[@colonelradec5956]

also is this good safe advice?? we will never know cause the dislike button is gone 😃 another thing of note. on who wants to be a millionaire. if you polled the audience they were basically always right. now you took that tool away for censorship. youtubes rotten.

[@CarCrazy2622]

don't gas company s add a fragrance to the gas??

[@arianaparker3567]

RiP headphone users

[@derekguidry9032]

Ariana Parker Hahah

[@PhillipHolmes-ui8nk]

Not a valid test. 😅 😂 🤣