Thanks for reviewing these Air monitors, I am in the market for one to help monitor when I am 3d Resin printing

@Outside-In.

5 ай бұрын

Thanks for the comment, and you are welcome. I do love doing these videos. I am getting ready to join a meeting with AirGradient, they looked at our channel, and liked what they saw, and set up a meeting tonight to discuss the possibility of sending a unit out to me for review.

Thanks for your videos. You can contact any manufacturer and get a copy of their Safety Data Sheet (SDS) which listed any hazardous chemicals in their products. Ask for the one for the deodorizer you are interested in and it will tell you if their is ammonia or anything else in there. Manufactures are almost always listed somewhere on the product and often a phone number.

@Outside-In.

5 ай бұрын

That is a great idea Jonathan, I guess I should have thought of that lol... But here is the problem with doing it that way - it takes all the fun out of testing things though. ;)

Great video, I'm new to your channel and I have to say I'm hooked. I wonder if you could recommend an affordable quality VOC monitor device

@Outside-In.

4 ай бұрын

Gregory, thanks for the comment, and the TemTop M10 is a good VOC monitor, as also is the one in this video - the Hotkrem CO2 monitor with TVOC.

@gregory2421

4 ай бұрын

Thank you for your recommendations. Unfortunately that Hotkrem CO2/TVOC Air Quality Monitor you reviewed (which looks like an incredible deal for the price) seems to be sold out everywhere

@Outside-In.

4 ай бұрын

@@gregory2421 It is weird that just after this video, the Hotkrem CO2/TVOC monitor has been sold out. I don't think it was because of this video, but hopefully it is just taking a while to get re-stocked, and I hope so anyhow, because I really like that monitor and hope they continue producing it. If you find another that you would like to know about, please let me know, and if I can afford to get it, I will do a video review of it. I am also looking myself for another comparable candidate as well. That Hotkrem has been out of stock for about 3 weeks now, so hopefully that means it won't be long before it is back in stock.

Great video as always, can you please tell me how accurate the HOTKREL 5- IN 1 and the HOTKREM 4-ni1 are with temperature and humidity?

@Outside-In.

3 ай бұрын

I am not sure what to say about that. My Hotkrems are not so bad, but I am now seeing allot of people that have different opinions on theirs, so that suggests to me that with Hotkrem it is a hit and miss on accuracy, so also another reason I am not sure I can recommend Hotkrem for accuracy due to low quality control.

Hi Steve, I've watched, thanked, and subscribed to all your videos re: Air Quality Monitors. If you had to pick just one for casual home use and to test some random air purifiers, which one would "you" yourself purchase after all the testing you have done?

@Outside-In.

4 ай бұрын

I would have to say that I would definitely go with the AirKnight, but please do not do it right now.... There are issues with the AirKnight at the moment, and they are working out those issues as we speak, and should have an update to the 9 in 1 in March with better sensors. If you are looking for something right away, my second choice would be TemTop. As a matter of fact, I am going to be doing a video about TemTop very soon, as they have contacted me to do a collaboration with them on a new monitor they are developing, and they are asking me to beta test it, and work with them on producing a quality monitor. The TemTop M10 and C10 would be my choice after AirKnight, but like I say, I would wait on AirKnight until they get their updated 9 in 1 out which should be in March of this year.

@Outside-In.

4 ай бұрын

I just thought that I would make another suggestion. The reason I mention AirKnight is because I was not quite sure what type of information you were looking for in a monitor. But since I have re-read your comment, I am assuming that PM is your most concern for testing purifiers, and with that said, the Hotkrem is a great choice if you need to test Particulates. The Hotkrem is about the ONLY monitor that will go down to zero on all sizes it registers, down to .03 microns when I introduce it into a purified environment. Please stay tuned, as once my new case is complete, I will be doing a video on testing all my monitors to see which one will actually go to zero on it's readings, and so far it is the Hotkrem, so that should be an interesting video.

@RobtTa

4 ай бұрын

@@Outside-In. Thank You! But I'm going to wait for the upgraded AirKnight (and pending your new review on it) as long as they can release it before the end of April. And I agree, the Hotkrem was going to be my choice until you mentioned the new upgrade for the AirKnight. Lets hope the upgraded AirKnight is going to be everything we hope for, then everyone will have a clear choice on what to buy. Thanks Again for everything you do!

@Outside-In.

4 ай бұрын

@RT-uh2md Yes, I agree with you that the AirKnight is going to be everything that we hope for, and one of the changes is going to be that we will now be able to turn off the automatic calibration every 10 hours, and thank God for that. 👍

HOTKREM is great. I have the 5 in 1 with the CO2 and the open case design. Great value for the money. And it is accurate and matches the much more expensive InkBird. I think they have the same C02 sensor. And I plan on getting the HOTKREM C02/TVOC when Amazon has them back in stock. If you do not need Datalogging. HOTKREM is the product to buy.

@Outside-In.

5 ай бұрын

Thank you, and yes I totally agree. I am going to look into getting the Hotkrem that has data logging, and also the open case Hotkrem that does CO2 and PM (like you say). I love Hotkrem products, and now I just wish Hotkrem would do a CO monitor next, that would be awesome... Thanks so much for your input - it is much appreciated.

@RuudyL

5 ай бұрын

Ihave the open 5 in 1 Hotkrem seems to work ok, onlything I do not like about it, that it has no alarm.

@Outside-In.

5 ай бұрын

@@RuudyL I have to agree, any monitor should have the option for an alarm. I didn't even notice that until you mentioned it. I don't use any of my monitors full time anyway. I only get a monitor or meter out if I need to figure out a problem.

Hello, thank you so much for reaching and making these videos. I just ordered the open case hotkim unit you have shown. My concern, is whether I can trust the results of the unit. I have to work in an area that has concrete dust. I’m having great difficulty in finding what micron size concrete dust actually is, so much conflicting information. Some say .03 microns, others say 3 microns. Will the hotkim unit detect these levels? Thanks

@Outside-In.

4 ай бұрын

Cement particulate size is between 10 and 20 microns in size, so yes, the Hotkrem will register that. The Hotkrem "open case" monitor, registers from .03 microns to above 10 microns, so it should be able to detect the particulates of cement particle concentration. The Hotkrem is very accurate from all my testing that I have done with it, and it is one of the few that actually shows zero on all particulate sizes when I introduce it into a purified environment, so yes, I would trust what the Hotkrem registers as legit... Thanks for the comment, and concern, and am hopeful that I have been able to answer your question. 👍

It's nice to see honest reviews like your's about product quality. Are you planning on testing monitors with dedicated sensors of other volatile compounds or elements?

@Outside-In.

4 ай бұрын

Yes, I have some great ideas in mind for future testing of monitors... I am also in the process of building a new case for better testing, but I have run into a nightmare situation with the build process, and it has delayed the build. I am hoping I can get the situation with a certain company rectified, so that I can get what I need to finish the case, and get back to doing what I love - creating these air quality videos... I have been getting some incredible ideas from viewers as of late - including yours just now, and I look forward to implementing them as soon as I can get my new case completed. Thanks also for your kind words, - they are very much needed right now, and they are also inspiring to me, that will give me the strength to push through this ordeal to reach the finish line, and get back to these videos lol. I have 5 new monitors to review, so am excited for the completion of the case, so I can get back to more reviews, and testing... 👍👍👍

@fleiteh

4 ай бұрын

Looking forward to watching your upcoming reviews. People generally recognize the significance of avoiding toxins in food and water, but many tend to overlook how much impact air quality has on our health. Thank you for taking the time to do these videos.

@Outside-In.

4 ай бұрын

@@fleiteh I agree, and I also thank for your insight, and finally - you are welcome... It is comments like yours that keep me inspired - 👍

1 Cubic Meter is 1000 liters of air measurement for the sensor to compute (takes some time for the mini fan in each device to clear 1000 litres of air before the values are updated) Hotkrem x/0.1L simply means it updates the values for every 100ml of air measured. This is very fast.

@Outside-In.

2 ай бұрын

Thank you gym137 for the information and breakdown - 👍👍👍

Have you tested or could you perhaps test the Qingping CGS1? What are your thoughts about the brand and their air quality testers? They seem to make high-quality user-friendly air quality testers but I’d like to be sure that their reading are accurate for both VOCs and CO2. Thanks

@Outside-In.

4 ай бұрын

Thanks Finn for your question. I have been looking at the Qingping CGS1 for a while now, and I would really like to test this one, but right now I am in the process of building a new case, and have 4 other monitors to test once it is completed. For now however, I just don't have enough money to buy the Qingping, but I will try and make it my next purchase when I get some more finances saved up.

Great information and I ordered a Hotkrem particulate monitor as a result through Amazon. However, after many hours indoors, it is regularly showing all PM values at 0 apart from 0.3 and 0.5 which is currently showing as 38 and 28 respectively. So I believe my unit is faulty. Would you agree? (I live 180 metres away from a freeway that sees 80,000 cars a day.)

@Outside-In.

3 ай бұрын

Yes, I do believe something is wrong with it. It should not be registering all 0's, and 38 is too low for 0.3, so you are right, your unit is faulty. I am hearing this allot lately about the Hotkrem, so I am only recommending them mow with caution, and that is unfortunate. I would love for someone who has a faulty one that can afford to do it, send it to me, and maybe I can find out if there is something that could be consistent with what may be causing the Hotkrem to be faulty, and hopefully it would be across the board and then I could create a video on what to check and how to fix it. Take the Hotkrem apart and check the circuit board for faulty solder joints, or bad connections, as that is what it sounds like to me is happening to all the Hotkrems that are faulty. Thanks for your question, and I hope I have helped. If you can check your circuit board for faulty solder joints or bad connection, and find the problem, please let me know here so I can pass along that information. 👍👍

@travis3023

3 ай бұрын

@@Outside-In. After a day or two the readings made some sense but I still don't think it's working properly. e.g. When cooking, the numbers spiked but some numbers still stayed at 0. I am happy to send you my unit. I have sent you an email in this regard.

@Outside-In.

3 ай бұрын

@@travis3023 Thanks Travis for the email. and I agree, the numbers are not right. I sent you an email with an address, and I look forward to being able to create a video comparing this with my Hotkrem monitors, and also doing a teardown, and close inspection to hopefully find what may be causing your Hotkrem and possibly other devices to give faulty readings.

Any news on that ne Airnight? Wanna get one. Also, I got an M10 and the TVOC and HCHO levels seem off. I try resetting the calibrating the HCHO, says it should start flashing "HCHO" but it doesn't. How should I calibrate it best? thanks for the great vids. I got the Hotkrem 5 in 1, very happy with that one.

@Outside-In.

5 ай бұрын

Thanks for the questions Nickalaughin, I will try to answer then in the order asked... 1. Any news on that ne Airnight?: I think you meant "new Airknight"... I haven't heard anything on the New AirKnight, but the updated 9 in 1 is supposed to be out in May. 2. I try resetting the calibrating the HCHO, says it should start flashing "HCHO" but it doesn't. How should I calibrate it best?: First the M10 needs to be put into a fresh air environment for the best calibration. Second, make sure when you put the needle inside the tine hole, that it is straight up and down, and not slanted - or you will miss the button. Third, just press the button, and let go, and the HCHO symbol should start flashing. It will flash for about 5 minutes, and then leave it in the fresh air environment for an additional 15-30 minutes before bringing it back into your house. I am getting ready to create two new videos, but am working on a new case before doing them. I have ran into some issues building the new case, and it is taking me a little longer than expected LOL. Should have the new case finished soon, so I can continue testing monitors. I am glad you like the videos, and happy to hear that the Hotkrem 5 in 1 is serving you well. I like my two Hotkrems also. Thanks again for your comment and questions, I hope that my answers have helped. Remember, when you push the needle inside the M10, make sure you are holding the M10 and the needle straight up and down (perpendicular to one another), and not on a slant, as it is easy to miss the small button on the inside to start the calibration.

@Nick-kb6jd

5 ай бұрын

@@Outside-In. Thanks for the reply. I got it figured out. Yes it was the new AirKnight 9 in 1 I was asking about. I'll keep an eye out for it.

@Outside-In.

5 ай бұрын

@@Nick-kb6jd Actually in May of this year AirKnight is putting out an updated version of the 9 in 1 monitor (not the new one), with independent HCHO sensor, Independent VOC sensor, and 2 18650's to replace the LiPo battery currently inside. The "New" AirKnight is supposed to have a touch screen, and 11 sensor readings instead of the 8 the 9 in 1 has. The "New" AirKnight is in development, and Jim is supposed to contact me as they get closer to a reveal date of the 11 in 1 monitor, and will be sending one out to me for review, testing, and tear-down. I would assume that the new AirKnight probably won't be available until around the end of the year. Hope this helps with the difference between the updated and the New AirKnight.

@Nick-kb6jd

5 ай бұрын

@@Outside-In. Got it. Cheers.

Do you have a link for the smart sensor products you talk about in your video? I'm not finding them online

@Outside-In.

Ай бұрын

Thank you for your question. Here are the links for the CO2 and CO sensors by Smart Sensor: Smart Sensor CO2 Handheld Meter: www.aliexpress.us/item/3256804532459210.html?spm=a2g0o.detail.1000014.46.65c8147bnU1c9S&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40000.326746.0&scm_id=1007.40000.326746.0&scm-url=1007.40000.326746.0&pvid=efc3c710-34f9-449e-8bd0-1c9c8a114481&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40000.326746.0,pvid:efc3c710-34f9-449e-8bd0-1c9c8a114481,tpp_buckets:668%232846%238114%23748&pdp_ext_f=%7B%22sku_id%22%3A%2212000030221280226%22%2C%22sceneId%22%3A%2230050%22%7D&pdp_npi=3%40dis%21USD%21255.4%21173.67%21%21%21%21%21%402101d1b316774814052091262e2b28%2112000030221280226%21rec%21US%21872586204 Smart Sensor CO Handheld Meter: www.amazon.com/dp/B091DRT5DN?psc=1&ref=ppx_yo2ov_dt_b_product_details Hope this helps.

@TotallyToobular

Ай бұрын

@@Outside-In. Thank you! Do you have a favorite sensor specifically for VOC measurement? I build camper vans and want to make sure none of my oil based finishes are off-gassing at unhealthy levels

@Outside-In.

Ай бұрын

​@@TotallyToobular TemTop just came out with their new M10+ on Amazon, and it incorporates a VOC sensor for real this time. Don't buy the M10 as it does not have an actual VOC sensor - it uses the HCHO sensor and a calculation is performed to get a VOC reading which in my opinion is a horrible way to get that information. So I do not recommend the M10, but the M10+ does have a legitimate VOC sensor inside now, but the unfortunate thing is that they decided to not implement a HCHO sensor - which is weird. This is the link to the M10+ on Amazon: www.amazon.com/Temtop-Detection-Temperature-Humidity-Connectivity/dp/B0D1K7GNPM/ref=sr_1_3?sr=8-3 Hope this helps, and thanks for the question - much appreciated.

Temtop response says the m10 only has a hcho sensor, and tvoc is calculated. But, I tested it against a Figaro tvoc sensor in a homemade gas chamber, and the m10 readings are in the ballpark.

@Outside-In.

3 ай бұрын

Thanks Joe. I think I will take the M10 apart to see if there is an actual VOC sensor. A calculation is not the best way to detect harmful gases in the air. If the M10 does not have an actual VOC sensor, then it cannot be trusted. The AirKnight does have a legitimate VOC sensor and a monitor like this is what I would trust over one that calculates a probability. I will check that out later today and let you know. Thanks again for the question - much appreciated.

@joeshmoe7899

3 ай бұрын

@Outside-In. I don't see the point in taking apart the m10, as temtop admits by email the m10 has no tvoc sensor, only hcho sensor. But, suit yourself. Which air knight are you referring to? The 9 in 1? At that price, I'd be surprised if it has a proper rdir co2 sensor. The m10 still seems best available for economical tvoc, formaldehyde, from my search. Especially at $65, my price.

@Outside-In.

3 ай бұрын

@joeshmoe7899 I sent an email to my contact at TemTop, so am interested in how she responds. I shouldn't have mentioned AirKight, as right now it is not a good choice. AirKinght is developing a new monitor, and not sure when that one is going to be ready for sale. I hope to hear from TemTop soon.

hello, where can i buy that small hotkrem co2 monitor? your link dont work. please and thank you

@Outside-In.

5 ай бұрын

Thank you Lawrence for the question. Unfortunately this item is currently unavailable. I looked for others, but didn't find any of this type. I did however find the other option from Hotkrem which is the CO2/PM monitor that has much more information, but does not have an internal battery. It is a little more expensive, but I myself am thinking of getting it for the additional information, and the link to it I will put here: www.amazon.com/HOTKREM-Quality-Detector-Temperature-Humidity/dp/B0BWQ2TPM5/ref=sr_1_3?keywords=hotkrem%2Bco2%2Bmonitor&s=hi&sr=1-3&th=1 I hope this helps, and thanks again for your question, it is much appreciated, and hopefully helps in your search.

HI sir, @Outside-In. @Outside-In do yo u have any advice on PM and VOC monitor that also have phone notification? such as if PM is more than 5, they will alert me so I can turn on my air purifier or open up to window. The reason I am asking is because the pollution is caused by my neighbour sometime late at night and I can't always catch it. :( it is affecting my son's room and bathroom . :(. many thanks. god bless

@Outside-In.

5 ай бұрын

Hello again Catherine, I try and answer every comment and question, and even if it is asked on multiple videos LOL... Just using a bit of levity... I will look into this and let you know either on this video or the other one.. Thanks for the questions, and God bless you and your family. 😇👍

@Outside-In.

5 ай бұрын

I found a device for you to take a look at. The TemTop M100-US. It uses an app that allows you to get push notifications when the air quality is bad. I cannot recommend a monitor that I have not tested in person, but I have two TemTop's that work very well, so feel comfortable suggesting the M100-US to you. It is a bit on the expensive side at 230.00, but it is going to be hard to find a monitor that sends push notifications on the less expensive side. Below is the link to check this out... If you decide to get this, let us know here how it works for you, and what you think of it. I would get this to test and review, but I have a very very limited amount of funds to create videos with, and as a matter of fact, I am getting very close to over-drawing my account again LOL... I love doing these videos, but it is hard to keep creating content with no help, but do the best I can. I do hope that this monitor works out for you, and may God keep you and your son safe. Hope your New Year is going great. www.amazon.com/Temtop-Station-Quality-Monitor-Wireless/dp/B099ND3RK2/ref=pd_ybh_a_sccl_1/136-3484219-7714427?pd_rd_i=B099ND3RK2&th=1

@catherinecheung207

5 ай бұрын

@@Outside-In. sorry for double posting.

@Outside-In.

5 ай бұрын

@@catherinecheung207 No problem Catherine 👍

what is the best air monitor for about $140 ( US dollars) ??

@Outside-In.

4 ай бұрын

Thanks Gabak for the question. I can only speak about those that I have tested and reviewed. I would say that the best so far has been the Hotkrem for Particulates. I am sure you are looking for a monitor that registers PM, HCHO, TVOC, AQI and CO2, and with that said, so far the best in that category is the TemTop M10 and the C10, and both together would be about 180.00 US. If AirKnight had their updated 9 in 1 finished, I would recommend the AirKnight, but at this time, the AirKnight is not trustworthy. I hope this helps in your search. I just can't recommend anything that I have not personally tested - hope you understand.

@gabakbusiness

4 ай бұрын

@@Outside-In. thanks for the quick answer plz could you send the me URL to buy the one you recommend is the most complet or the model and i can buy it in amazon

@Outside-In.

4 ай бұрын

@@gabakbusiness TemTop M10: www.amazon.com/Indoor%E3%80%90PM2-5-Enthusiasts-Professionals-Formaldehyde-Detector/dp/B09T643TQ8/ref=sr_1_9?dib=eyJ2IjoiMSJ9.4Qze6xTTEeleXnQrPUZ2awWKoRuT9sVFc1mzzgdvgjSzRbsQ122VZmSCQUnXwyupLYd7tTch8wpSnIQ4ChPHHARo3shB88BnKjB2FQha1VieErSaqBu_1Ft5KcTz23tP-PPGe2Jatt4OKSDQBpLmVm3meWpQavGQNMocBR0XfZYgFqOyJmtiJ6QI4Zd5CsRsQcgIyUhBiZ4e-UT0Y37kZa3zg3nD_GUhaFqKnh766P0.Y5qQdwHr-7fJEmkYYRcxeECVnl7NHmkB2tRQl9vEizc&dib_tag=se&keywords=temtop&sr=8-9 TemTop C10: www.amazon.com/Temtop-Real-Time-Detector-Temperature-Calibration/dp/B0BBG9DZHB/ref=sr_1_3_pp?dib=eyJ2IjoiMSJ9.4Qze6xTTEeleXnQrPUZ2awWKoRuT9sVFc1mzzgdvgjSzRbsQ122VZmSCQUnXwyupLYd7tTch8wpSnIQ4ChPHHARo3shB88BnKjB2FQha1VieErSaqBu_1Ft5KcTz23tP-PPGe2Jatt4OKSDQBpLmVm3meWpQavGQNMocBR0XfZYgFqOyJmtiJ6QI4Zd5CsRsQcgIyUhBiZ4e-UT0Y37kZa3zg3nD_GUhaFqKnh766P0.Y5qQdwHr-7fJEmkYYRcxeECVnl7NHmkB2tRQl9vEizc&dib_tag=se&keywords=temtop&sr=8-3

@gabakbusiness

4 ай бұрын

@@Outside-In. i see Temtop they have many models like you sent me is there a model that can have everything in one device? or do i have to buy many in order to check the air quality?

@Outside-In.

4 ай бұрын

​@@gabakbusiness Unfortunately they don't have a monitor with all features. You could look at this Hotkrem which registers PM 2.5. 1.0, 10, 0.5, and 0.3 micron, and also CO2: www.amazon.com/HOTKREM-Quality-Monitor-Detector-Indoor/dp/B0BWQ2TPM5/ref=pd_ci_mcx_di_int_sccai_cn_d_sccl_3_7/136-3484219-7714427?pd_rd_w=EeUQz&content-id=amzn1.sym.751acc83-5c05-42d0-a15e-303622651e1e&pf_rd_p=751acc83-5c05-42d0-a15e-303622651e1e&pf_rd_r=9KQN7ARGZ4DAR11YCFDM&pd_rd_wg=TAWk5&pd_rd_r=281bf105-7a84-49f2-b32e-ea2efc135fd5&pd_rd_i=B0B9S7857S&th=1 The Hotkrem along with the TemTop M10 would be around 160.00, so that way you would also have HCHO and TVOC as well. It is hard to find a monitor with everything, because I believe it is to make more money having to purchase multiple monitors which in my opinion is very unfair to consumers, and why I am constantly looking for a device that incorporates everything in one device. I am currently working with AirKnight, that has led them to develop a new monitor, but I am not sure when that will be out, so for now the Hotkrem and TemTop (from what I have tested) is the way to go. I will get other monitors as I can afford to purchase them, but for now, I have simply run out of finances to continue buying monitors to review, as every video I do comes out of my pocket, which only allows me to do so much. I wish I could be of more help, but until companies start sending devices for me to test and review, it can take as much as two months to get a device. I contact companies from time to time, but Outside In just doesn't have enough subscribers to interest them in sending their devices to me for review.

HOTKREM Indoor 5-in-1 Air Quality Monitor,CO2 Carbon Dioxide Detector,CO2 Monitor, pm2.5 pm10 pm1.0 Detector, Meter,Temperature and Humidity,for Grow Tents,Homes,Cars,Farm etc Is this real that it has a Carbon Dioxide detector ??

@Outside-In.

5 ай бұрын

YES, it is definitely real, and you will👍👍👍 be happy to own it. Hotkrem is starting to be one of my favorites for sure. Thanks for the question, and comment - much appreciated..

@RuudyL

5 ай бұрын

@@Outside-In. I ordered one, this is the one I was looing for, now I can send all the others I ordered back except the Carbon Diocide pro meter

@Outside-In.

5 ай бұрын

@RuudyL 👍👍 So glad I could help. Now if Hotkrem would make a CO meter, they would be all set, lol.

@RuudyL

5 ай бұрын

@@Outside-In. That would be nice, I would like to stay with one brand, only thing is that they dont have alarm, which makes them not really a safety feature

@Outside-In.

5 ай бұрын

@@RuudyL That might be something that you could write Hotkrem about. I have written them myself with suggestions, and CO was one of them, so we will have to see what happens. Allot of times, a company needs many requests from many people to make the change, as I guess it is hard to make a change just because one person wants it...

And it's gone.

@Outside-In.

3 ай бұрын

Yes Joe, it has been gone for the past month, and don't know when it will come back. A lot of people are complaining that the Hotkrem doesn't work, so I would have to say it is because there is no quality control from Hotkrem, so not sure I can recommend Hotkrem any longer. I have contacted Hotkrem several times for comment, and they have not once responded to me, so yet another reason I will have to recommend people to look elsewhere. Thanks for you comment - much appreciated.

Wrong! Your devices aren't matching at all. You're just comparing numbers without the scale. It's like comparing a Celsius thermometer to a Fahrenheit one and claim it's good when they show the same number. It's not! The left TVOC is in PPB whereas the right one is in mg/m³. With an average of 110 g/mol 70 PPB is about 0.32 mg/m³, so 0.07 mg/m³ is way off!

@Outside-In.

3 ай бұрын

Thanks Marcus for the correction. I just wish that companies would stick to a standard way of measuring data. Besides - the Hotkrem CO2 is for CO2 monitoring, and the TVOC is just extra, but the most important is the CO2, and me personally, I wouldn't even pay attention to the TVOC reading on any monitor as they are mostly pointless anyhow, because rubbing alcohol will cause a TVOC reading to show dangerous when it is not dangerous at all, or paint odor will also cause TVOC to go off the charts, and if Paint odor was dangerous, then I would say that the population of the world would have never made it as far as it has LOL. TVOC in my opinion is pointless because you have no idea what the sensor is actually detecting (as there are about 10,000 VOC's), so therefore have no idea if what it is detecting is even dangerous, it could just be the candle fragrance from the candle we just lit, and that is why I do not like TVOC readings. I guess I need to start making more of a point about TVOC in videos, as it should not be something to get overly paranoid about.

@joeshmoe7899

3 ай бұрын

@Outside-In. I prefer tvoc to regulate ventilation. Sold my high quality co2 monitor. I wasn't using it.

@Outside-In.

3 ай бұрын

​@@joeshmoe7899 A CO2 monitor also comes in handy if someone says they are having problems, and then you can take it to where they are (if close by), and test their environment, - that is what I like to do anyhow LOL.... If you prefer gauging ventilation via TVOC, that is fine, but I would never ever discount CO2 levels. TVOC is something you can not only see, but smell as well, but CO2 has no odor or taste, so no way of knowing the levels, and why it is so important to have a monitor to check the levels from time to time, especially if you start having health issues you can't explain.... Just a thought.

@joeshmoe7899

3 ай бұрын

@@Outside-In. spaces are designed to accommodate occupants, so it is rare that co2 would exceed allowable limits. VOC is generally not considered in design. Poor choices in building materials, furniture and contents are a wild card. Beyond initial co2 check, VOC is the on going variable that needs to be watched. Leading to changes in the VOC sources and/or ventilation. If VOC is under control, co2 is rarely a concern. Far harder to control VOC.

@Outside-In.

3 ай бұрын

@@joeshmoe7899 Thanks for your thoughts, much appreciated. 👍