No comments, but at least this guy is excited about it!

Will this work without the pump?

Legros Walk

Definitely purchasing one.

how to know if someone smoked or not . I need that device to check because I don't want to smell his breath lol .

Effertz Valley

Can it only record two detections?

Jaeden Stravenue

How does this compare to the FD-J001 (Blue) model?

You took 10 seconds to start a sentence and still gave 0 info, walmart dr oz

Genevieve Flat

Does the end piece ever wear out and are they replaceable. Do you sell these on Amazon. Thank you

did the company get bought out? i have one of the original cootwo detectors, wanted to know about purchasing new sensors and batteries for the unit. I had taken everything apart and out for long-term storage. I'm in venture, for the record. any info would be helpful. thanks.

You paperwork says 3 models but they all function the same. Do they all do sewer?

Estel Forges

this is a scam

you did not quote what is the calibration gas.

Can you show us how to monitor/read the carbon dioxide gas inside an incubator using your device?

Good info, thanks!

Can you also test a carbon monoxide detector with a candle somehow? I know if you have a candle and you put a cup over it it will burn up all the oxygen is it also putting off carbon monoxide and could that somehow be used to test? I'm just asking cuz I don't have a match but I have a candle and a lighter, would paper work instead of a match?

Great video, thank you! There is so many videos and web pages that just show you how to push the button to test it but they don't actually show you how to really real world test it, so thank you sir! 👍🏻

Turn them all on se what happens ?

🇺🇲🤝🏻🇯🇵

😮😮😮😮😮😮😁😁😁😁

It doesn't detect cigarette smoke, but particles regardless of if they're from cigarettes or from some other source!

why does it get out of range if your tvoc is 53 ppm and measurement range is 100 ppm?

Can I use this in an apartment I rent out?

Can I use this in an apartment I rent out?

what is the minimum detectable level is it lower then the smell?

The casinos in Las Vegas the filters are amazing!

👍

Can you install this in a HVAC system, like in a vent, etc...

Can you tell me how can we buy it

Why does the oxygen sensor degrade faster than those for other gases? It would be because when purging (rinsing) with atmospheric air, it contains oxygen, but not the other gases. In summary: does the presence of oxygen for long periods of time make the oxygen sensor degrade faster? Thanks for the excellent videos.

Bs

I need one !

what is the maximum pressure and lpm you can measure and put it through, like whta would happen if you try to go above 10 lpm to like 12 lpm for instance?

Its carbon monoxide

"as you could see" i couldnt it was out of frame the whole video

The camera movement makes me feel like I'm in a room full of carbon dioxide

By the way, what is a "BUMP"test? Robert Landfield

Thank You, I finally received your FD-91 RED Gas Leak Detector (Natural Gas/Methane). Dr. Koz's "Welcome" says "PDF user manuals are our website". Which website? I haven't been able to find them. Be kind, and make it simple for me, I will be 95 Fri, 8/30/24. Bob Landfield

I use something like this every day to avoid breathing second hand vape (for 2 years). Vape is a very bad form of air pollution and an irritant to a lot of people including myself. I use it mainly on public transport which is badly policed with regard to vaping as it is too easy to conceal. I have no problem with cigarette smoke, but one person vaping produces the same ultra-fine particles of 3,800 people smoking and it's those that cause the problems for me. Your exposure to vape is relative to the level and how long you breath it and it's very difficult to tell straight away if it's just at the level of 'smell' or 'exposure'. Ultrafine particles lodge deep in the chest and go straight into your bloodstream and every organ of your body. The only way I can stop it being a really bad problem for myself is to rinse my lungs and nasal passage in the shower every night. Smoking is way bad for the people doing it to themselves, but vaping is worse for everyone else.

Ok !

How can we buy

Bough one last week due to sewer gas odor in garage pipes. Followed the directions & tried all settings. Not once did it register any reading & the odor was obvious. Disappointed & sent it back.

Is he on coke? He's moving about like a thunderbird and shaking his hand like adolf

Does this detect only acidic vapors or gasses too? I'm asking this because acidic gasses can exist in both forms - as vapors in the moisture or as gasses. HCl for example can dissolve in the moisture in the air easily but in the case of low humidity, it remains in the gas form. Does the humidity need to be high for accurate measurement? Let's say we're in a relatively low humidity (40%) and there are high amounts SO2 and NO2 in the air, will this monitor measure the levels accurately?

What's the lifespan of this product?

oh if your PM2.5 and PM10 are 3 and 3 then you are in a very clean environment, indeed if PM2.5 is the same as PM10 it means that it is null, so you better try to NIST calibration! :-)