uHoo Indoor 9-in-1 Air Quality Smart Sensor - White

Model Number: UHOO-IAS-1MC-US
Web Code: 14689573

uHoo Indoor 9-in-1 Air Quality Smart Sensor - White


Breathe easily and enjoy added peace of mind thanks to the uHoo indoor 9-in-1 air quality smart sensor. This compact and elegantly designed device detects temperature, humidity, air pressure, volatile organic compounds (VOCs), dust, ozone, and more to help you keep your home healthy and safe for the whole family.
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Breathe easily and enjoy added peace of mind thanks to the uHoo indoor 9-in-1 air quality smart sensor. This compact and elegantly designed device detects temperature, humidity, air pressure, volatile organic compounds (VOCs), dust, ozone, and more to help you keep your home healthy and safe for the whole family.

  • 9-in-1 design monitors temperature, humidity, carbon dioxide, volatile organic compounds (VOCs), dust (PM2.5), nitrogen dioxide, ozone, air pressure, and more
  • High-performance ARM-based processor with 128-bit AES encryption via SSL provides powerful and secure operation
  • Integration capabilities allow you to pair the uHoo with Alexa, automatic air purifiers, smart thermostats, and hundreds of other IFTTT devices
  • Companion app provides you with data insights, data sharing, and personalised tips
  • Elegant design is just slightly larger than a coffee mug and doubles as a sleek piece of décor
Alarm/Sensor Type
Smart Air Quality Sensor
Temperature Sensor
Operating environment


Works with Amazon Alexa


uHoo App


500 sq feet
Additional Features
monitors temperature, humidity, carbon dioxide, volatile organic compounds (VOCs), dust (PM2.5), nitrogen dioxide, ozone, air pressure




8.5 cm
8.5 cm
16.1 cm
Width (Inches)
3.35 in
Height (Inches)
6.34 in
Depth (Inches)
3.35 in
0.3 kg
  • uHoo Air Quality Monitor
  • Micro-USB Cable
  • Power Adapter
  • Quick Start Guide

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Rating Breakdown











Reviewer Recommendation


Of the 36 reviewers who responded, 29 would recommend this product.

Key Considerations

Averages based on how reviewers feel this product performs.

Ease of Use:


  • Indoor Air Quality Peace of Mind
    Reviewed by softwareEngineer - September 3, 2020

    [This review was collected as part of a promotion.] To be honest, I wasn’t sure what to expect from a unique product like this. I knew I wanted it because I have family and friends that have asthma and airborne allergies, and I also care for a couple of indoor cats. My main concern was the amount of particulate matter in my home, but I was super surprised to understand the other 8 things that can be going on. First, the uHoo app and device setup was a breeze...on iOS. At first, I tried setting it up on my Android device, but had very little luck getting past the hand-off to wifi. Anyway, you’re going to have to set up an account on the uHoo app and add the uHoo itself. You’ll be able to add more than one uHoo, so if you choose down the road. If you were wondering, you’re gonna have to keep it plugged in full time. There are a few sensors inside that will need a few days to calibrate itself, so pick a good spot and leave it alone! It has 9 areas of monitoring; I won’t go through each one as you can read about that on your own and determine what’s most important to you. Again, I wasn’t expecting various levels of monitoring from this little device. But here’s the best part about uHoo and its app: if any of the 9 monitoring warning thresholds are met, the app will notify you immediately, no matter where you are, and suggest ways to mitigate the warning levels. In many cases, it will suggest you run an air purifier, run the A/C or open some windows for fresh air. I mean, how else would you easily know your CO2 and NO2 levels are climbing? What about a CO leak? And that, in itself, is worth the price of admission. The uHoo also has a 1-10 virus index, 1 being best and 10 being worst. It takes into account all 9 sensor readings and presents a virus index assessment, meaning how likely a virus is able to survive in your home and how likely an airborne virus is able to spread. During a time of virus crisis, this is another way of mitigating your COVID-19 risk. For us geeky types that are truly interested in the data, the app presents graphs of each sensor and its readings throughout a day. I honestly don’t care about the numbers, but more about the trending; for instance, why does my air pressure readings spike around 9AM-12PM and from 7PM-10PM for the past week? Turns out that during the statewide flex alert, the electrical company was putting my Nest Thermostat in Eco Mode, effectively turning it off between 12PM-8PM. It was only when my A/C was on, the air pressure was up in my home. I know, pretty geeky stuff. Finally for tech savvy, there’s a bit of smart home integration. It has Google Assistant and Alexa integration, which seems to be the trend nowadays for most new devices. But with IFTTT, you could potentially purchase a smart air purifier that would trigger on if the uHoo detected high PM2.5 levels. The uHoo’s price is in the upper range of its class and it can get a little costly if you need a 2nd or 3rd in your home. That being said, I wouldn’t mind picking up another for my home. I currently keep mine in the family room, where we mostly congregate throughout the day.

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.

  • A must if you care about indoor air quality
    Reviewed by MrLowNotes - September 8, 2020

    [This review was collected as part of a promotion.] I want to say right up front, as an HVAC contractor, I think that every home needs one of these. Especially if you have natural gas or propane appliances in your home. This includes a furnace (split system or package), water heater, fireplace, wall mounted or freestanding gas heater stove, cooktop or oven. Kerosene heaters too. It could save your life. What it does: uHoo has 9 dedicated indoor air quality sensors: Temperature Humidity Carbon Dioxide (CO2) Total Volatile Organic Compounds (tVOC) Dust (PM2.5) Carbon Monoxide Ozone Nitrogen Dioxide Air Pressure It uses these to monitor the levels of each item in a room of your house. You can change locations but it will need time (a few days) to acclimate to each location. You can even use it outside but you will need to make sure it’s in a dry space where rain won’t reach it. From what I can tell it takes a sample every minute and plots it on a graph. You can view the graphs by the hour, day and month. In the month view it shows the minimum, maximum and average. You can set an alert in the app to warn you when a level gets too low or too high. Please see screen shots. I have professional test gear to test the Temperature, Humidity, Carbon Monoxide and air pressure (barometer) and they are dead on accurate. I’m not going to go into all the health effects of the nine items uHoo monitors. That would make this review way too long. The app gives a basic overview of each item. Looking at the temperature graph and the humidity graph you can see when your air conditioning is cycling on and off from the peaks and valleys. You can also look at a month graph and see if your system is keeping up. Say you have a refrigerant leak in your air conditioning system. You would see that the run times are longer over time and not reaching the set point as fast or eventually not at all. This is the same type of graphic info as refrigeration systems at super markets use which was invaluable to me when I used to be a commercial refrigeration tech High Carbon dioxide CO2 levels can cause you problems like sleepiness and headaches to name a couple. I discovered my CO2 levels were getting high at times. Cracking a window made a big difference and brought it down. It did have a very small effect on increasing the humidity. Cooking can run your CO2 levels up too. Carbon Monoxide has stayed at zero on my uHoo and my professional CO tester reads the same. This is the most important item it reads out and why I wrote what I did in my opening statement. Ozone and Nitrogen Dioxide can cause health problems and make existing ones, like asthma, worse. This tracks those. Pretty much everything uHoo tracks can cause some sort of negative health issue at varying levels for each. At high levels they can be deadly. Especially if you have asthma, COPD or other pulmany issues and even non pulmany issues. I highly recommend researching all the things that uHoo tracks beyond temperature and humidity and how they can affect you. Setup and App: uHoo doesn’t come with a manual. It just tells you to go download and install the app. The app will take you through setting it up on your smartphone and WiFi network. It will ask you to turn on location (GPS) during setup. You do not need to turn location on when you use the app after it’s been set up. Once set up it will need time to acclimate to its location and certain sensors will need time to auto calibrate. It tells in the app if they are calibrating. My uHoo didn’t work when I set it up. I tried several times by resetting and reinstalling it including uninstalling and reinstalling the app. I ended up talking to customer support and an engineer. Turned out my problem was my internet connection. I have satellite internet via Dish Network (Exede) and the long ping time in excess of 670ms was timing it out. Adjustments were made and it’s worked perfect since. They were outstanding with their customer support as this took some time to figure out. I would highly recommend this product and will recommend it to my HVAC customers too.

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.

  • Great sensor suite supported by a great App!
    Reviewed by ITJim - September 10, 2020

    [This review was collected as part of a promotion.] I am a member of Best Buy’s Technical Insider Network, TIN for short. Reviewers in this invitation-only program are provided products for the purpose of writing honest, unbiased reviews. This is a neat little device. I was not expecting much when I opened the box. The device is about the size of a soda can. There are slits in the devise for air flow. There are no fans. There are operational lights that are only lit during initial setup with your wi-fi network and the mobile app. You place this in a room, plug it in, and forget about it for a few weeks while it collects air quality metrics. The device itself may be the most boring piece of technology I own but, after two weeks of collecting metrics, it has got me thinking about the air quality in my basement. Normally, with most IoT devices I have owned, the device represents a “great promise” of some amazing “I need this in my life” feature. And then the accompanying app is either some marketing gimmick, after thought, or simply falls of making a good product great. Uhoo does not hide the fact that their product is a paperweight. The magic is in the sensors and the app. In my opinion, they did a great job with the app. There is room for improvement that I will go later. So, what does it do? The uHoo collects 9 air quality factors every minute: temperature, relative humidity, dust, carbon monoxide, nitrogen dioxide, VOCs, carbon dioxide, ozone, and air pressure. Current readings for all nine air quality factors can be viewed at any time from the app’s home screen. Each quality factor can be viewed individually by hour, day, or month as you scroll through the home screen. Touching the title of each quality factor puts the focus on that one quality factor; giving you access to every data point collected from today all the way back to the earliest data points. The graphs break down by Month, Day, and Minute. Moving your finger along the graph will give you the exact reading for any given data point. The app allows for the setting of alerts, adjustment of measurement thresholds, and will offer suggestions based on insights uncovered through the metrics. For example, at the bottom of the home page is a button labeled “Insights”. After two weeks, the insights offered two tips: Adjust my room temperature to make it more comfortable and adjust the room temperature or add a dehumidifier to reduce the chances of mold growth. I agree that I probably could have figured those two out on my own. However, the detector is measuring more than just temperature and humidity. You will find attached multiple charts for Carbon Dioxide with this review. I have a monthly chart, a few day charts in different orientations, and an hourly chart. Each give me similar, but slightly, different kinds of information. If you look at the charts, you will notice that the Carbon Dioxide seems to climb, then falls off sharply, and then steadily goes up again. A single graph over a day is not a pattern. But, if I keep seeing the same, or similar pattern over time, then I must ask myself what is happening in my basement to cause the Carbon Dioxide to fluctuate like it does. I was able to correlate the increase in CO2 to the frequency of showers. I have a boiler system. Showers force my furnace to kick on to maintain the water temperature for the shower. The CO2 rises slightly when around the same time furnace kicks on to heat the water. I will concede that a correlation is not causation. And I will need more closely track when showers are taken. Then, much harder, track when and for how long, the furnace runs. The key take-away is that it is getting me to think about my home in ways I had not considered before. So, who cares! Furnace runs, burns fuel, and sucks up the oxygen in the room to keep the flame running. Anyone who graduated first grade knows that fire needs oxygen. Well, I spend time in my basement for things other than watching my furnace run. The basement is sealed during cold days and days where the humidity is high. The furnace burns oxygen. I burn oxygen. I eventually feel groggy after spending a few hours in my basement. Part of the issue may be the lack of fresh oxygen entering the environment. I used to think the issue was fatigue. Or carbon monoxide. Well, now I have some metrics that may a different story. Metrics can be actionable. Perhaps I add some plants to the environment to keep up the oxygen. This reduces the competition between my furnace and my lungs for the limited oxygen supply. And I have a device that can give me some tangible metrics to support changes to my environment that would otherwise have gone unnoticed. I also know carbon monoxide is not my problem. A cheap detector can tell me the same thing. But you only know that a cheap detector is working when it goes off. Now I can see what is actually going on over time. What else am I going to find as I study the additional air quality factors and notice other correlations. As great as the app is, there is room for improvement that I hope uHoo chooses to implement. I would like to able to review multiple metrics simultaneously so I can identify other patterns. For example, and I am just making this up, is there a correlation between humidity and VOC levels? As is, I can only look at one graph at a time. There is no website, that I am aware of, that will allow to me further manipulate the data to tell a more complete story of the air quality in my room. Even an export feature to Excel would be helpful. I would also like to view metrics over a custom defined period of time. By default, the app will only allow a full month displayed as the largest unit of time. I can view all of August on September 4th but not the last two weeks of August including September 1 through 5 which are part of the final week of August. I am interested in seeing a year’s, or multi-years, worth of data. It is all about how metrics are gathered, used, and interpreted. When was the last time you bought a product that gave you the possibility of applying big data analytics to your own home? Normally, you have to pay someone lots of money to do it for you. I did not test this unit with the smart home apps like Alexa, Google Assist, IFTTT, Mediola, or Conrad Connect. The only device I have is Alexa. And the last thing I need is Amazon sending me marketing material for dehumidifiers and high oxygen producing basement shrubs that doubles as wi-fi hotspot for smart cat doors. The device itself is a boring, quiet, paperweight. Set it and forget it. The app is robust for a mobile app. It could be better if there were other ways to access and manipulate the data. I think Ohuu has a winner here. Thank you for reading my review.

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.

  • Shows what can't be seen
    Reviewed by xKing - September 12, 2020

    [This review was collected as part of a promotion.] It's an interesting little device, not much to it on the outside - just a white cylinder with holes on top and the bottom and a USB power cable. On the inside however it holds an impressive sensor array - temperature, humidity, air pressure, Carbon Dioxide, VOC, Particulate Matter (2.5), Carbon Monoxide, Nitrogen Dioxide and Ozone! It's an impressive combination! If you are to look at the commercial HVAC products - CO2 sensor alone would cost 2/3 of this device. What does it do? Normally in my case - it just reports all green (in the middle of a Texas summer), however on a rainy or cool day - it clearly shows CO2 levels creeping up.. I did not think of it before I've got a way to actually monitor it. Now I can just turn on a ceiling fan if I see CO2 levels creep up in my master bedroom or open a window to air out the room. It's a very good investment for anyone who thinks of looking at the indoor air quality for whatever reason. Getting headaches? Asthma? Allergies? Start with the air you breathe, it's possible that solution to your problem has nothing to do with medications! Few negative points: - there is no way to get information of this device locally, like, let's say - MQTT server. Sure there is Google and Alexa integrations and IFTTT, but I do prefer local access. - No Apple Home Kit integration...

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.

  • Cool Unit, but Maybe Needs Some Work
    Reviewed by CMCMom29 - September 21, 2020

    [This review was collected as part of a promotion.] The uHoo Smart Indoor Air Quality Monitor is one of those gizmos that you don’t know that you need until you get one. The unit is designed to detect allergens and toxins in the air. I suffer from allergies year-round, I have dogs, and I have children. There is a lot of stuff in our air so I was curious as to what this would measure. The unit was easy to set up. You take it out of the box, plug it in, download the app from your favorite app store, and off you go. You follow the prompts in the app to set up. You will need to let the unit run for about three days before you start to see accurate results. This thing monitors stuff I didn’t realize were things. What’s a TVOC? PM2.5? I’m not sure, but the uHoo monitors it. I have CO2 monitors in the home and have never had one go off. However, the uHoo alerted me via push notification that my CO2 levels were higher than recommended. The next day, I had the windows open for a while and the level went down. What became annoying, though, was a stream of constant alerts. It told me that the humidity was high and that I should turn my thermostat down. I did so. Then it alerted me that my home was colder than usual and to turn my thermostat up. Huh? This went back and forth until I finally shut off the push notifications. It was too much. Seems to me it is a little too sensitive, maybe? It also defeats some of the purpose if I have to turn off the notifications because there are too many of them. It’s the app that cried wolf. Now, how will I know if I’m in a danger zone? For that reason, I took off one star. It’s a really interesting item to have, but it might need a bit of tweaking to be really helpful.

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.

Product Category
Smart home products
Return/Exchange Period
30 days