Top 10 Best radon monitor 2022 Pick By Experts

I am a retired chemist so I’m concerned about radon emissions. I had absolutely no knowledge of this product or company until I found out that have a lot of radon in my new home. So, I purchased a model 223 a couple weeks ago and am using it to help me understand the situation while I wait for remediation. It’s doing a wonderful job of informing me of ‘hot spots’ and the average level throughout the house while I hold my breath.Now to its accuracy. The Corentium 223 specification is perhaps the most honest approach to accuracy I have ever seen in a consumer product. It’s based on: ‘sigma = less than [a percentage and the length of test]. It is statistical probability specification of accuracy and it is rich in accuracy information. However, you need to do the math, understand what ‘sigma’ means in variance statistics, understand probability distribution curves, and then the use the spec to calculate the worst case accuracy of the device associated with your own radon situation). So, please do that before you criticize the device. If you studied the specification and did the math, as I have, you would see that it is quite accurate for an inexpensive radon continuous monitoring device…. and way more than suitable for home use.Let me repeat that again. If you use the device as instructed by the manufacturer and are willing to trust the specification as determined by some very smart people who spent a lot of time, money and brainpower to prepare it, then you will be measuring Radon and its variability in your home in a way that is vastly superior to doing periodic mail away tests.The radon in your home varies from day to day, month to month, hour to hour. The anecdotal ‘evidence of accuracy’ presented in virtually all of these reviews is absolutely without merit. Why, because determining the accuracy of the device against a standard source is extremely complicated. As a chemist I know that for a fact. We, as customers, do not have the time, money, equipment, or knowledge to do it – period. If you are somehow guessing that you need better accuracy in a shorter period of testing then please consider buying the Corentium pro for $1200 or perhaps some other professional device. You may not get better accuracy but you will likely get equivalent accuracy in a shorter period of time…. that’s how the statistics work. Please read the last two sentences again.Consider this too. The manufacturer, Air Things, is based in Europe and it appears to be a spin off of CERN in Geneva, Switzerland. Look up CERN in Wiki. You will be impressed. They are the world’s leading experts on making and measuring radiation. I am impressed because their ‘no calibration necessary’ technology for this device (and their more expensive professional models) seems to be the result of a micro miniaturized, more precise spectroscopic technology for measuring radioactive decay of radon daughters alpha particle emissions.Finally, I’ve read literally hundreds of these Amazon reviews where accuracy is mentioned… and actually is somehow mysteriously determined in the basement of their home. However, I’ve not seen one review that references the manufacturer’s specification. Everyone here that’s comparing ‘this to that’ or ‘that to this’ and making claims about ‘accuracy’ doesn’t have a clue what they are talking about. However, a number of thoughtful reviewers seem to have run side by side tests with other devices or mail away canisters. Assuming those tests were done properly, then they can be considered slightly helpful but otherwise of no use in determining the device’s accuracy.I’m going by the specification. I’m confident in my device and am very relieved that I own one.—- UPDATE: April 28, 2021 I bought a second unit a couple months after purchasing the first, so both are now over two years old. I am very happy with both units. No problems – I lent one out to my daughter for a few months. Now I keep one in the basement and the other on the first floor. I recently replaced the batteries in the first unit (a two year battery life – just like the manufacturer said) and have had no problems at all with either unit.Regarding Accuracy – I am reiterating that the Airthings accuracy specifications (which result from the highly advanced ‘spectroscopic’ technology behind it) are extraordinary for a low priced unit. Don’t believe the misinformation from reviewers here who claim to have determined the ‘accuracy’ of their Airthings unit as bad or good by running some kind of ‘test’. You/ Me / Other Reviewers / cannot in any way determine the accuracy of any type of radon device or test kit on the market – not for any device – not for any manufacturer). Period.The only choice you have for determining the accuracy of any device you buy is to trust the manufacturer, the manufacturer’s statistical process control, and that the manufacturer truly, deeply understands the extremely complex issues in radon measurement. The Airthings company was founded by CERN scientists. CERN is where many of the smartest on this planet create and measure radiation with the Large Hadron Collider (LHC). So… I trust the Airthings accuracy specification.So – If you really want to know the accuracy of any type of any radon monitoring detector you purchase (regardless of the manufacturer), here is what I would recommend so as to get decent accuracy results.- identify an analytical laboratory highly specialized and experienced in the many complexities of radon measurement- ensure that it is a laboratory using standards and equipment based on measuring radon in the atomic form(s) in which it is most carcinogenic,- send them your device and have it tested under tightly controlled laboratory conditions for a period of time (that is dependent on the rate at which that particular device model approaches the true radon value).For me, buying two of the Airthings devices was an easy decision once I researched and understood the issues in Radon measurement, and the various devices available.As I said previously, I have no affiliation of any kind with this company, but I do get frustrated when reviewers who have no clue what they are talking about provide horrible misinformation for the rest of us.

The radon detector was received in the time expected and in a bubble envelope. It is winter and the unit was allowed to warm to room temperature. Next, it was plugged into the wall outlet. An error message appeared upon initialization. Per instructions, electric power to the unit was cycled. This time the unit came up with the correct response – beeps, flashing CAL, then dashed lines for short term and long term readings in pCi/L. Per instructions, readings appeared in place of the dashed lines in 48 hours. I had placed the device in a bedroom of the house on the second floor. The initial readings were 1.8 pCi/L. This is close to one-half of the EPA action limit of 4.0 pCi/L or 148 Bq/m^3. (Each 1 pCi/L is equal to 37 Bq/m^3.) The WHO states that 2.7 pCi/L or 100 Bq/m^3 is the action level. The WHO also states that lung cancer risk will increase by 16% for every 100 Bq/m^3 of long term exposure. It is also important to remember that cancer risk is based on long-term exposure. It does not matter if the exposure was continuous or intermittent. Exposure to radon adds up over time. If you have moved from one house to another, each new exposure adds to long-term exposure. After 7 days of monitoring the radon reading fell to 1.7 pCi/L. We fully expected that the readings in our house would increase when we moved the sensor to the first floor and then to the basement. After 6 days of monitoring of the first floor near the kitchen and laundry the reading was 1.9 pCi/L. A week later the reading had fallen to 1.0 pCi/L. Thinking that there might be something wrong, we continued to monitor the reading for another week, and it steadily climbed to a maximum value of 2.5 pCi/L. That reading persisted for 3 days, and it is steadily falling again. These results show why long term monitoring is important. It is winter and the ground is beginning to freeze, although there is no snow cover. This makes the ground more, not less, permeable to radon gas. If it rains or snows, the ground becomes less permeable to radon and the gas may be less apt to dissipate into the outside air and more apt to enter the basement. The most common point of entry is the basement, but radon can also enter through windows and doors. The water content of the soil around the house, how well the basement windows are sealed, how well the basement concrete cracks and seams are sealed and concrete porosity all contribute to basement radon levels. Radon levels (if you have well water) will usually increase in the winter in a closed house where water vapor releases radon gas from laundry, dishwasher and bathing. The contribution due to evaporation of radon laden well water is added to the contribution entering the home from the basement to get the radon total. That is what is being read on the first and second floors of our home. Readings in the basement will be due to infiltration of radon through cracks in the foundation and basement slab as well as the porosity of the concrete, itself. Our well water contains nearly 4,000 pCi/L of dissolved radon. That is less than half the EPA actionable level of 10,000 pCi/L. Every 10,000 pCi/L of dissolved radon is expected to add 1.0 pCi/L to the air in the house due to dish washing, laundering and showering. We have no direct way of knowing if an additional 0.4 pCi/L has been added due to water vapor. We can assume, however that part of the dissolved radon in our well water is removed by the charcoal filter on our domestic well water supply. There is one additional note that might be added. There is no battery backup power to the unit. However, when the detector is moved to a new location, the data from the previous location will be held until the reset command is asserted with the push button on the face of the device. We have been very happy with the functionality of this device and will use it to guide us in radon mitigation decision making in the spring. If interested, the instruction manual with specifications can be found online. The manual provides sensor accuracy specifications for short and long term measurements. This is not a professional, periodically calibrated instrument. However, the accuracy should be more than adequate for determining when to call a professional. Added note, it is spring and the ground has thawed and heaved. The ground floor radon readings for the last two weeks have been between 2.2 and 2.7 pCi/L. We also have 135 days of data for our ground floor living space and the average is 2.0 pCi/L. Currently, the sensor is monitoring the basement so that a radon fan can be sized in cubic feet per minute (CFM). The bigger the fan, the more electricity it will use on a continuous basis. Most fans use between 50 and 100W. In this locale electric power is $0.20 per kW-hour. The annual operating cost would be between $88 and $175.

I like the large lighted display and the led indicator for gas safety warning. The inclusion of temp and relative humidity are convenient. The device seems to have a short battery life, but is conveniently charged via usb to micro usb cable. I have experienced slight “freezing” of the reading, but can easily refresh for updated readings. The 2 button operation makes for ease of use.

Tl:drI recommend this product. I believe that it is currently the best on the market and provides a good array of sensors for the price. I have not received any financial or other consideration for this review. I have no connection to the company. Details, positive and negative, are found in the review.Intro: In operation (after 7-day calibration) for three weeks beginning October 2021. Unit is located indoors in the bedroom of a small single-story home in northern California. I purchased View Plus after an online evaluation of competitive units. The purchase decision was based on the array of sensors, acceptable display of sensor parameters, appearance of a good user interface, ability to easily download the data in Excel .csv file format, designed in Norway, and assembled in Tunisia (visible in product photos). I expect that this is the first product that I’ve ever owned that was assembled in Tunisia. There were no Amazon reviews as I purchased the unit as soon as it became available.My primary motivation for purchase was to measure indoor particulate pollution during the wildfires. I wanted a more quantitative measure than the colored indicators on our air purifiers. However, I have since become more interested in the carbon dioxide (CO2) and VOC levels. The inclusion of Radon, temperature, humidity, and atmospheric pressure sensors is a plus.Particulates: I have had an extended conversation with Airthings via the app. They are responsive, although it may take a few days or even a week, if you ask technical questions as these need to go to the engineering team. As this is a consumer and not scientific device, there are cost limits on the nature of the particle sensor. Airthings does calibrate the particulate sensor to a scientific instrument. However, the Airthings sensor is most likely not able to distinguish between different particle size and scattering distributions that give the same overall signal. I had plans to do a cross correlation study with a scientific instrument, but circumstances conspired against me.At this time, I am satisfied that Airthings has done enough work that the threshold limits (green

**Update**Shortly after posting this review AirtThings finally repsonded and offered to replace my unit which was indead defective. After receiving new unit, it does work as intended. I do enjoy the product and think it works well (when it works). I am updating to 4 stars and not 5 because of the 3 month support turn around to replace a defective unit.Original 1 Star Review—After 2 weeks the device’s radon reading stopped working (which is the entire purpose of this device). I contacted support who provided troubleshooting efforts without any resolutions. After 2 months of back and forth they have become completely unresponsive. Over 30 days of me following up with them weekly at this point and just no response. I still have a broken device and a company that is doing nothing to try to resolve the issue.

Very easy to interpret the values from the chart. Just charge it up and stand it on a desk, etc. Shows all the values right on the screen. It helps to show if your air is polluted or not and it’s easy and accurate

So my Radon fan hits the brick a few weeks ago, it started vibrating and caused a loud buzzing noise. Since the fan is located near our bedroom, it got to the point of disrupting our sleep and I had to put a timer on it so that it shut off for a few hours every night before bed time.While I waited for the new fan to arrive, I also ordered this gizmo, mostly for peace of mind. It arrived first about a week before the fan did and set up took mere seconds via Bluetooth once you download their app. No complicated sign-up for new account required.The photo you see if a data plot of radon level vs. time. And you can clearly see the radon level spiking up every night after the fan turned off and then gradually returns to normal once the fan was back on again. The latter portion is after I installed the new fan and no more exceeding “alarm value” thereafter. Now of course I don’t know how accurately the absolute value is calibrated but it most definitely serves its purpose of detecting change amount of radon in your home. Whole-heartedly recommend if you need something for this purpose.

My family has been struggling with some confusing health issues and has been feeling quite sick often for seemingly no reason. An asthma and dust allergy diagnosis prompted us to do more research into air quality and it quickly became clear that poor air is causing many of our issues. I did a great deal of research and settled on this air monitor based on reviews, specs, cost, smart capability, and app quality. It arrived quickly and I set it up immediately. I was astonished to see that the measurements were extremely high for the three main things this monitor measures. Particulate Matter, tVOCs, and Carbon Dioxide were in the danger zone and we learned that our old apartment doesn’t have proper ventilation.This product gave us the information we needed to know to address our health issues. Now we open the windows everyday and use fans and air purifiers to move the air around. This doesn’t solve the issue, but does address it daily. I found the display to be simple, intuitive, and easy to read. I also use it as a dim nightlight by adjusting the settings, which is just perfect. The free app works well and gives me the ability to check on things from anywhere. We are not currently using it as part of a smart system, but I am glad that we have that option.The only thing I would like to see changed is the notifications for humidity or temperature. I keep my house a little chilly and the device tells me to turn on the heater at 72F, which is just an unnecessary message. The same is for the humidity, although that makes more sense since it does directly affect air quality. I would prefer to set parameters instead!

I am not sure how accurate it is. But I use it in a relative way – when the AQI gets over 20, I turn on my air purifier until the AQI drops back down to the usual 2-5 range. One day when the AQI outside was bad – reading about 160 according to our county AQI monitor, I took it outside (not so easy as it doesn’t have batteries but I managed) and it read 140 which is close enough for government work. And the temperature/humidity is always a bit different from my other unit. It is very easy to read. The only disadvantage is there is no backup battery so moving it outdoors is almost impossible as it has to be plugged in. Setting the clock is best described as obscure; I gave one to my Sister and it took 30 minutes on a zoom call to explain to her how to set it. (It took me 45 minutes to figure it out). So (a) clock set and (b) battery backup are things they could work on. But on balance it is a good measuring instrument and much cheaper than Purple Air.

I got this because I was curious about my 90 year old house and if there was significant amounts of Radon. Placed in the basement and connected to my iPad I left it to ‘calibrate’ as the instructions required.It’s been recording for over two months and what I’ve seen is surprising. According to this device the Radon levels in my basement vary WILDLY, even when conditions are stable. With consistent temperature and humidity, even with outside weather stable the thing will report 0.4 pCi/L one day, 3.5 pCi/L the next, and back down to 0.8 pCi/L the next day. All with nobody even being in the house!I’m having a hard time trusting it.