uHoo 9-in-1 Smart Air Quality Monitor Indoor, Smar

It has potential to be an exceptional product if you’re patient. 5 stars based on potential.
I’ve had my unit for almost a year now, there have been a lot of bugs, but the uHoo team seems to be continually iterating and building upon the app. It’s definitely a much stronger, more reliable tool than when I bought it. Probably for the first nine months my NO2 and O3 readings were always off the charts, and I basically learned to ignore them as I still got mostly reliable info from CO2, PM3, and TVOC which were the most critical metrics for me. Eventually, I contacted the team about this bug and it got fixed within a few days. It seemed like a bug that was impacting only my unit. There have been a few other hiccups, but they were random and I’ve learned to deal with them, but as of the last couple of months I haven’t seen many, if any, bugs, and the app has a much better UX.I’m looking forward to using the IFTTT features soon, it’s the feature with the most potential. Right now, IFTTT doesn’t seem to be very robust and that could be due to being new to it. I imagine the uHoo team will continue iterating on the ability of the end-user to access the data. Previously I wasn’t planning on buying anymore of these, but since the app and reliability have improved, I will be buying another couple of units once I find enough free time to comfortably navigate IFTTT and data exporting to justify the cost.In about a year or two, I plan on constructing a house and it would be great to see an expansion of this product into something that can be incorporated into said construction and not something merely designed for a table or counter top. Maybe something that looks like a smoke alarm and mounts to the ceiling powered by a lithium battery with the ability to connect to WiFi / LiFi. Also on the wish list would be a sensor for Radon.

Worth every penny
I have asthma. My husband, an engineer, has been working tirelessly to make our house air as clean as possible. Filters. Ventilation systems. And more. My symptoms worsened. I thought, unless we know what’s in the air we cannot fix it. I found the uHoo online and ordered it. I looked at competitors, but I liked that the uHoo has more sensors (better chance we could really understand our air) and the uHoo samples every minute (important for checking results when making changes to conditions). I was skeptical but I was desperate.Within 24 hours of setup (it takes a day to calibrate), the uHoo identified high VOCs. We adjusted our filter systems. No improvement. If we opened the front door, conditions improved. But if we turned on the air exchanger, the VOC reading climbed. I worried that our air ducts had mold. My husband inspected them and they were clean. We finally realized the OUTSIDE air being brought in through the air exchanger was highly polluted. The system sucks in air from the side of the house where our septic system lies. An inspection revealed that the clean-out lids did not have gaskets. Even though there were no odors from the septic system, it was emitting VOCs. My husband installed gaskets. Within a minute, uHoo displayed air quality improvement. Without the uHoo, we would not have suspected the septic system.Today, all sensors are in the green. Not all of my symptoms are gone (asthma has many triggers), but with the uHoo we can better understand our air quality and make continuous improvements.P.S. I was not compensated in any way for this review. I am just a happy and grateful customer.

I am writing this after two years with the unit. It regularly shows TVOC at very high levels that are quite obviously wrong. By that I mean nothing in the house changed, no cooking, etc. But the numbers shoot up and stay extremely high for a long time before coming down. Even opening a window doesn’t reduce them to a reasonably accurate level, which clearly it would if the actual TVOC were high indoors. See photo attached. Humidity reads high by 5% or more, PM2.5 also often reads high. I have compared with multiple other brand units that I had running concurrently. The other units agreed with each other quite closely while this unit can be completely out to lunch. Other times it would agree with the other units. Contacting UHoo resulted in them checking and then resetting the unit remotely. That brought things back to reasonable levels, but it didn’t last. Rebooting didn’t make any difference most times. The unit will randomly come back into the realm of accuracy and then take off again. I cannot rely on it. That is a shame because I bought it specifically for the hourly graphing which is an awesome feature. Too bad the graphs are often wrong.

今、まさに黄砂がやってきて、あまり、かまえず普通に過ごしていましたが、今日、3時位に気がついたのですが二酸窒素の値が、黄色信号で、ずっと下がらず、おかしいなと思っていたら、黄砂が、二酸化窒素を含んでいるそうで、すぐに窓を締めて、エアコンのナノイー空気清浄をしました。ナノイーは、TVOCの値は全く減らないのですが、二酸化窒素はみるみるうちに０になり、ほっとしました。他には、寝ているときに二酸化炭素などがすぐに溜まることに気がつけたし、TVOCの値も締め切っていると、みるみるうちに危ない状況になっていることに気がついて、換気の習慣が付きました。家にいると、眠気がすごかったので、二酸化炭素が気がつけて役立ちました。家の中からわからなかった近隣からの柔軟剤のような異常な臭いにも気がつけました。夜5000の異常な数値で家の中では異常なく、廊下に出ると風呂の乾燥室で暖められたと思われる強い臭いで化学物質アレルギーの危険がありましたが、気がつけて対応できてよかったです。家で同じように柔軟剤を使い乾燥しても200程度なので調べたところ、柔軟剤によっては多く入れてしまうとTVOCが異常に出るものがあるそうで、香害が報告されているそうです。無煙タバコの可能性もありますが、24時間換気で止めると二酸化炭素が厳しい状態になり、管理に対応してもらわないとダメな事案でしたが、とにかく頼りになる機械です。ベランダ側にも買って役立てています。困ったことが起きてやむを得ず問い合わせましたが機械についての問い合わせも対応も助かりとてもよかったです。外からくる有害な空気について、こういった事案について検証動画などあると、いいなと思います。空き家の前で吸われた煙草も検知しました。二酸化炭素とTVOCがいっぺんに上がり、外にでてみても分かりませんでしたが、たまたま通りがかった人がいて、そしたら下から歩きタバコで出てきた事もあります。残念なのが通知が英語で日本語に対応しておらず全くわからないことです。最初、数値のキャリブレーションには3日位、かかりますので、その間は、無駄に一喜一憂することになりますので、しばらく数値を見ないようにしたほうがいいかもと思いました。いいものをありがとうございました。一酸化炭素値がおかしいです。２台持っていて、一台がおかしく、何度もご対応いただきましたが、今回も派手に出続けています。特徴は二酸化炭素値も怪しいところです。原因究明をお願いします。念の為、日本製の一酸化炭素測定器を買いましたが、全く一酸化炭素は検出されません。同じppm測定です。