The Radon Eye RD200 Smart Radon Monitor Detector is very easy to use and interpret its readings. It is 'Plug and Play'. As it has only been on and working for 3 days now, I feel comfortable with it's accuracy but will still compare it to another sampling device. The only dislike is the Data Log as the graphing detail is too coarse. I do like how it captures a "peak" reading and stores it . And also how it reports a daily average Radon level. Satisfied with its performance so far.

very easy to install and connect to phone, love the app which can show history data. I did a lab test to confirm the reading and they match very well. never have to worry about radon anymore

The Radon Eye has worked well for me over the 3 weeks that I have had the product. Both the LED display and phone app provide useful data. The logged data is especially useful to observe radon level trends. While the logged data can be displayed in the app being able to transfer the logged data to a computer and to import it into Excel is nice as it allows you to manipulate and process the data however you like. The fast response time of this product allows for meaningful readings of short term variations of radon levels. The Radon Eye's current reading on the LED display and logged data points are rolling 1-hour average values. The other radon meter I have used (Pro Series 3) requires 48 hours of data to provide an accurate reading and it only displays 1 week averages for its short term output. That long averaging period makes the Pro3 less useful in correlating events that cause rises and falls in radon levels. The one week average values from the Pro3 appear to track reasonably well with the 1 week averages from the Radon Eye. I have observed that short term variations are strongly tied to weather conditions. Cold/cool mornings and rainy periods appear to correlate to significant rises in radon levels. I have only used the product in one location so far (living room), but may relocate it once a longer period of data collection has occurred.

During my home inspections prior to purchase my inspector found my radon levels elevated, so purchased this to monitor my levels prior to remediation. Turns out this device is very accurate in comparison to the two professional hired out tests that were preformed in my house. The device beyond plugging it in, and pairing their mobile app with the device over bluetooth it was up and running within minutes. Really love this and will continue to have it run all the time in my lower level to ensure my radon levels stay low also awesome I can get my reading from my phone. I love the graphs it produces as it stores all the data it gathers to show the long term averages of your radon numbers.

I am finishing my basement and wanted to know my radon level as I will soon be spending more time in the basement. All you have to do is plug in the unit and place it where you want to get a reading. After about 15 min you will get your first reading, however, it is best to let it sit for a day and then observe the average. The accompanying app makes it very easy to download a graph history of your radon levels. I found out that the radon in my basement was above 10 pCi/L. This is well above the US EPA safe threshold of 4 pCi/L. As I am not particularly interested in me or anyone else in my family getting lung cancer, I had a radon fan installed. After installation of the fan, I used this RD200 to observe the efficacy of the suction fan. My radon dropped from 10+ pCi/L to 0.6 pCi/L. More important to this review, the reading on my RD200 matched the reading on radon mitigation company’s professional radon meter. I feel very confident the radon measurements from this unit. I also like that this unit has an alarm if the radon level exceeds a set value (mine is set to 4 pCi/L). This unit gives me piece of mind that my family is not breathing dangerous air.

I use this device to continuously monitor radon in a house with significant radon risk. Most importantly, I had a professional home inspector drop off a monitor and was able to validate this results of this device against a calibrated unit +/- 5%, close enough to call it perfect. For the cost, you can't beat it, I'd recommend testing this device with a calibrated unit to make sure. But once that's done it's invaluable, particularly in my case as I built a DIY radon abatement system (which worked in bringing my levels from 72pC/l to ~1). A python api is published as well, so I use a raspberry pi to pull readings and post them to a website so I can share my triumph against radon with friends.

Easy setup than other brands and priced fairly. Check it daily/weekly and feel it’s accurate against other radon testing levels.

Easy to use. Wish I had known about this sooner. I was buying short term tests for $15 and paying shipping to the lab. With this I know my number daily.

I bought two Radon Pro3 detectors before this one several years ago. They both work very well and show an almost identical Radon level. We tried another brand (batteries powered) before, and somehow its readings were always too low to believe. Radon Eye doesn't have this kind of problem. Radon Eye RD200 is very convenient and accurate readings as the same as the other two. The Bluetooth connection is very reliable to our iPhones and fast because it is running on a power cord. the only drawback it can't hang on the wall.

While I do not have another radon detector to compare the accuracy of the readings, they do seem to change based on conditions as I would expect. The readings are higher in the morning, and go way down when I open a window, so I think they are realistic readings. The app is good, too, but nothing fancy. Would purchase it again if I needed to.

Helped us monitor the radon level in our house. We were surprised how much the levels fluctuated. This monitor proved that we needed mitigation, and that the mitigation has been successful.

Had another brand previously, that would emit loud screech if it was above 4.0 and wouldn’t log the data. This is a much better product. Samples every few minutes so you can track daily fluctuations and log. Easy to reset the log, so you can move locations and test where in basement you have the highest levels. Works great! I bought a pair and they are very close to synchronized with their readings. Bluetooth feature and app is amazing. Would recommend anyone with serious radon issues buy one or multiple and place in basement! Highest possible recommendation.

Wow. So easy to use, and I can’t believe I didn’t Buy this before now. A good way to check to see if the medication is working in your home. I am sharing this with friends and family.

It is a simple plug and play kind of sensor. Easy to move around and test other areas. App easy to download and straightforward on how to use. Only downside is data not easily syncable with computer, but the graph on phone app allows extended views of area. Pretty good value for the price. Updates several times an hour.

I like the quick response and app data download, so I can record the readings. I am in the process now of comparing the readings with an actual radon charcoal test, and with my Airthings Radon meter. I also like that you can set the alarm level. My house gets 85% of its radon from the concrete walls not the ground. Regular mitigation method will not reduce the level below 4 pCi/l. My initial observation of this meter is it reads a little high, so run it for 48 hours or more. It will let you see if the level of radon changes through out the day.