Airthings View Plus lyks ilmanlaatumittari

Has a PM sensor that is more accurate than Uhoo, but not as accurate as professional sensors but it is a consumer device. Reasonably good all round and would trust to buy another one.

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 <10, yellow <25, and red >25 µg/m3) for the PM 2.5 sensor are reasonably close to the equivalent limits used by the US EPA and European PM 2.5 AQI. For the data that I’ve collected, there is very little difference between PM 2.5 and PM 1 signals. I have not investigated why. One caveat is that the data collected so far has an average PM 2.5 and PM 1 values of only 2 µg/m3 and only a single peak greater than 25. Since the rains have (finally) come, I don’t expect to have the opportunity to check against more polluted air conditions in the near term.Carbon dioxide: This provided the most surprise about the conditions in our home. I found that ventilation in our bedroom is insufficient to keep levels in the green without the window(s) being open at night. I am looking into ways to ameliorate this problem when keeping the windows open is not an option. When I first received the unit, I placed it outdoors to see if it would read the expected value of about 400+ ppm for average CO2. The unit read about 550, but it was before the 7-day calibration was completed. Over the course of the past month, when the room was well ventilated, I observed readings as low as 469 ppm. The unit will show the increase in CO2 when either 1 or 2 people are in the unventilated room for any significant period of time.VOC (volatile organic compounds): The measurement is in parts per billion, ppb. This is my first experience with VOC data recording. The unit is certainly responsive and exhibits significant signal when we are cooking, especially frying. As there are many different types of VOC, I cannot comment on whether one should take significant actions based on the results in the home. Do fry-cooks have career related health issues? At a work environment, such as an organic chemistry lab, there may be many types of VOCs that are clearly harmful to health.Radon: All the values that I have recorded are below the green threshold limit of 2.7 pCi/L (picocuries per liter). The average value over 2000 measurements is 0.7 and has a standard deviation of ±0.4.Temperature: Comparing the value to household sensors indicates that the temperature displayed by the Airthings sensor maybe between 1- or 2-degrees F high. However, I consider that within measurement error for accuracy given the nature of the other sensors. Precision appears to be excellent.Relative Humidity: Comparison only with household sensors. Appears to be within a few percent.Atmospheric Pressure: Excellent agreement (within 0.5 mBar) with external values (local weather data). Range of data recorded between 1001 mBar and 1022.5 mBar.User Interface (Unit): There is an E-Ink type display that is not illuminated. This is a very low power display and conserves battery. No power used to maintain the current display reading. It has high contrast and easy readability. You can choose 2 sensors to display via the app (Phone or PC). When you wave your hand in front of the unit, it indicates its assessment of the overall air quality (good, fair, or poor) and shows any of the readings that cause a fair or poor result. It then returns to the standard readout. I have not found the lack of illumination to be detrimental.User Interface (Phone): I’m using a Samsung Galaxy A51 with Android 11. The software allows you to choose among several devices that you might have. As I have only one, it displays a summary that is in the attached photo. You can then tap “VIEW IN WEB DASHBOARD” to get graphic displays for different periods of time. You can choose to get notifications via the app, if values exceed the Airthings recommended thresholds. You can choose the sensors for which to have notifications sent. These thresholds cannot be changed. I think it would be good to be able to change the thresholds with the understanding that one is responsible for the values used.User Interface (PC/Web): I’m using an Intel-based PC running Windows 10 Pro and MS Edge for this unit. See attached photo. The graphing is generally quite good. I’d prefer to be able to choose the order in which the different sensors are displayed. It might be possible to do this by deleting sensor graphs (called tiles) and then adding them back. I’ve not tried that. The vertical scaling is automated and determined by the range of values of the data being displayed. The scale cannot be changed, but you can zoom using touch, if your computer/phone has that capability. Adding the historical data (not shown in the photo) will expand the vertical size of each graph and give the minimum and maximum value for the data range.Bug: You can add a tile for the outdoor weather, but only for Oslo, Norway! They have given me instructions for changing the location, but the software for the View Plus is not the same as for the software shown in the instructions. I have made them aware of this. It is unclear to me whether they can and will offer software updates.Downloading Data: The .csv file contains the time and sensor data for the entire time the system has been recording for that location. If I don’t do something to re-start history, the data file will eventually grow to unmanageable size. They should allow you to specify the range or use the range chosen for the graphing display. The file name is also fixed as the serial number of the unit. These are serious limitations given the extra work caused for the user, I consider them bugs.The data are separated by semi-colons, so converting from text to columns in MS Excel is easy.The data are recorded with a UTC time stamp. Since I’m in California, it is easy enough to subtract 7 hours and put the local time in the next column.The headers have a few character-conversion bugs: “μ” instead of “µ.” The character “” is inserted in the Temperature column header. These are minor.The date/time format is 2021-09-30T20:04:28. The “T” separator is a nuisance and prevents Excel from recognizing the form of the data. If they would replace the “T” with a space, then Excel would have no trouble. I use the replace function to do this. Again, it is no big deal, but should be a simple fix. I have made Airthings aware of these bugs.I will append this review, if I find additional information that may be pertinent to other users. I hope this has been helpful.Appendix 1: I've added a comparison of the PM2.5 data from the Airthings View Plus (indoors near an open window) to Purple Air data from an outdoor sensor (not mine) about 100 meters from my home. The Purple Air data are shown in the US and European scales. The data are for the 24 hours of October 29, 2021. Correlation is excellent for the main peak.

Premetto che ho solo commenti positivi: funziona bene, l’applicazione è facile e chiara da capire, facile da usare.Non ho modo mi valutare se sia davvero preciso ma mi fido delle recensioni che ho visto.Quattro stelle solo per il prezzo.

The View Plus (2960) measures radon, PM, CO2, VOC as well as humidity, temperature and pressure.It also can display outdoor weather and temperature in areas where that service is available. We have it in our bedroom to keep track of indoor air quality where we spend 1/3 of every day. It's also great to see the outdoor temperature next to the bed when we wake up in the morning.I originally purchased the View Plus (2960) and one Wave Radon (2950) detector because we live in a high radon area (central Ohio). The 2960 has Wi-Fi and will collect data from other AirThings products and upload it to the AirThings dashboard. The wireless communication between the 2960 hub and the 2950 sensors is a proprietary protocol using the IEEE 802.15.4g standard. This is similar to Zigbee, INSTEON and Nest Protect home automation products.Based on my experience with other home-tech devices, I downloaded the app, and had all the devices near each other when I configured them. So, I had no difficulty setting them up. But wireless interference could be a problem and all of mine are within 50 feet of the hub.We put the 2950 in the basement. The dashboard is very helpful with radon because radon varies from hour to hour, day to day and seasonally. It is the long term average that indicates whether a health risk exists. I have a home office in the basement, and I've included a snippet from the dashboard of the radon levels recorded from late January through November 2022. This shows the variation, and how bad the levels were (over 22 pCi/L). Once we installed a mitigation system, the levels have dropped below 2 pCi/L.After the initial two weeks and I saw how bad the radon was, I purchased a second Wave Radon (2950) detector to have units in two parts of the basement (crawlspace and home office). After three months of monitoring, I was convinced we had a problem and we scheduled a radon mitigation contractor which was completed a few months later.After 8 months, I had a problem with the 2960. It showed really large numbers, then 0. I had already installed a mitigation system, so this was confusing. I purchased an AirThings Corentium to put side by side with the 2960, and proved to myself that the unit indeed was defective. The support person who originally picked up the ticket did nothing, and email for warranty service was ineffective. So I mentioned this in my previous review (since replaced with this one), and within two days a good support agent picked up the ticket, and helped me with the RMA process. It was disappointing that the unit failed, and that initial support was not helpful. However, the second agent was proactive, professional and communicated well and I was able to return the 2960 for a replacement unit. I've had the replacement for a week now, and it seems to be working fine. Based on the excellent response from the second agent, I will continue to recommend these products to friends. I can't quite give the product 5 stars because of the failure of the first agent, and the initially nonresponsive warranty process. However, if the product continues to do well, I can see myself raising the rating back to 5 stars at some future date.As a final note, if you are not sure if you need radon mitigation, and are wondering whether you should spend the money or are just technologically afraid, the AirThings Corentium is a great product too. It has no smart phone or Wi-Fi integration, but is a simple-to-use product that utilizes the same sensor that is in the 2950 and 2960 and gives 1 day, 7 day and 30 day average readings.

My aim is to control my chronic bronchitis (never smoked) with the help of the Airthings Air Quality Monitor.What I have found is my domestic co2 is very high at 2500 which is not good considering outside air is 400 on a good day, even though we live near a busy main road.These excellent monitors give a clear indication in a colour coded readout how good or bad the air is, plus no other monitor seems to provide a Radon measurement which is also very important.Can't really fault them.

i will update my review as time passes, as my opinion can change and maybe updates will improve thingsfirst, i have new wifi 6e access points. it doesn't appear to work with WPA3, so you'll need to disable 6ghz for the SSID you use with your airthings device. not a big deal, just worth mentioning (it might support it, but their software isn't great so it's really hard to tell what it's doing and why it's failing)i got the view plus. upon unboxing, it immediately said add device on screen. so far so good. downloaded the app and hit add device. the device showed up. so far so good. added it. it said add usb-c power to activate hub. but nowhere does it explain what that means. it doesn't show me data because it says it needs to collect data for a few days. what is stupid about this is that i basically have to walk away and assume it's working oki planned on grabbing the data and logging it in the future so i definitely wanted to hard wire it. i wall mounted it and gave it usb-c power. it said hub mode on the screen briefly. but i never saw any values. i decide maybe it needs to wait. a few days later i'm curious to see my radon levels because i have a mitigation system in my basement. but i see it says a few days since last contact. but it's on, as the screen responds when i wave my hand over it. it didn't lose power, because it's plugged into my rack ups, which has almost 20 hours of runtime for all of my network gear. (most of my servers have over a year and a halfuptime, for example)the app still shows plug in usb-c to activate the hub. but is WAS plugged in. i replugged it. nothing. decide maybe it's WPA3 issue. removed the device. moved my phone to my old SSID with WPA2. used app to add it back. plugged usb-c back in and screen said hub mode. now it's making me start over again on the data gathering. this was before i wall mounted. two days in roughly, i unplugged the usb cable, but it has batteries in it so it shouldn't matter. i got it wall mounted and plugged power back in. now it won't reconnect and show online nor show updated data in the app. the app is unintuitive and doesn't really make it clear if it's talking to the hub or not and why it might not be. or what to do about it. so i had no choice but to remove device and re-add it again. now it's working again but it made me start over again, so 3 days for readings. and a month for radon. ugh. a wasted week. so then i wonder where does it store the data? if it's a hub, is it storing locally? surely not. while trying to troubleshoot it, i saw mentions of web console. but nowhere in the instructions did i see any mention of it or how i can access it. is it a local we server in the device? or do they store the data in their cloud offsite? i wish i knew, but they don't mention anything so i'mleft here scratching my head. i assume it doesn't cloud save as that would explain why it made me start over with data collectionbut that brings up another point. if it stops responding again, does that mean i'll have to start over every time and then lose my data? why is it so fragile? with no interface, i have no way of knowingwhat it's doing. i have a black box i connected to my wifi that i know nothing about. was my box missing the detailed instructions? what i had seemed to have almost no information. even the links within the iOS app had little information.what's a hub?where is the data stored?for how long?does it support WPA3?what about 5ghz?why is it so fragile?when it stops responding, is there a way to get it talking again without removing and adding again; which seems to cause it to start over and reset my data?where is the web console? how do i access it?if the instructions were better and the app made it more clear the status of the device, why it isn't communicating, how to fix it, it would be nice. but it just shows "plug in usb-c to activate hub mode", even though it's literally plugged into usb-c. not helpful and even misleading, as i thought my wall adapter might be bad.seems half baked, honestly. it has the potentialto be awesome if they actually make better instructions and make it more stable