Author Topic: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10  (Read 11464 times)

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Online kenthcwx

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Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« on: August 24, 2020, 01:55:34 PM »
Davis are releasing their own air quality sensor come October 2020.

No information on the Davis site yet but it appears to be on weatherspares.co.uk, retailing at around £200

https://www.weatherstations.co.uk/airlink.htm

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Features:
• Indoor & Outdoor: Place AirLink on a desk or countertop, or mount on a wall inside or outside.

• Accurate: Measures particulates as small as 0.3 micrometers with an accuracy of +/-10 micrograms per cubic meter in concentrations.

• Real-Time Readings: See updates on your phone and computer every minute.

• Global Air Quality Indices: Choose from a growing list including US, Canada, Mexico, China, EU, UK, Australia, India, and South Korea.

• Wi-Fi Connected: Easily connect AirLink to your Wi-Fi network to send data to the Davis Cloud.

• Pair with a Weather Station: Use multiple AirLinks as stand-alone sensors or easily merge with your Davis weather station.

• Compact & Quiet Design: Low profile design with near-silent fan mounts on a wall or sits on a countertop.

• Simple Setup: Quickly install AirLink by following the simple directions on the free WeatherLink app.

• 1-Year Warranty: Enjoy peace of mind with Davis’s reputation for quality and durability
« Last Edit: August 24, 2020, 02:05:58 PM by galfert »
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Offline johnd

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #1 on: August 24, 2020, 02:05:46 PM »
To anticipate a couple of questions:

The sensor unit needs to be mains-powered and also contains a temp/hum sensor.  The unit can be located inside or out, but while there's a protective outer case that should be used outside to help with mounting, there's no formal radiation shield so best located outside in a shaded spot. The data unit then connects via WiFi (only) into a LAN.

Airlink uploads directly to weatherlink.com, but is fully independent of any local Vue or VP2 stations. IOW the only data integration happens at weatherlink.com.

Data should be available via the v2 API of weatherlink.com and there will also be a local API.

« Last Edit: August 25, 2020, 06:54:11 AM by johnd »
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Offline galfert

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #2 on: August 24, 2020, 02:23:00 PM »
Nice to see Davis designing this product to have a local network API like the WLL. Surely the various popular currently weather software will soon evolve to support this. I'm referring to Cumulus MX, Meteobridge, Weather-Display, and WeeWX.

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #3 on: August 24, 2020, 02:59:33 PM »
Interesting. Looks like competition coming to the PurpleAir sensor.
« Last Edit: August 24, 2020, 03:11:16 PM by ConligWX »
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Offline weather34

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #4 on: August 24, 2020, 03:07:28 PM »
on my shopping list ..nice especially as it is stand alone as well ..

Offline waiukuweather

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #5 on: August 24, 2020, 03:11:46 PM »
weather display software already supports numerous air quality sensors so will be able to easily support this once the api is known etc

Offline jcookjr82

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #6 on: August 24, 2020, 03:27:39 PM »
I really wish someone would develop an AQI monitor with solar ability. I would definitely purchase and install for the good of the community to go along with my Vue, but I don't want to run/install special wiring for a clean install and I'm not just going to plug in a spot that is subject to potential rain and can be susceptible to theft.
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Offline Phil23

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #7 on: August 24, 2020, 06:02:07 PM »
I'll take a punt & guess it's based on a Sensirion SPS30.

I Bought a couple last year with the intention of running them on a micro.
Still haven't bot past reading it via their Evaluation software.

It's protocol is well documented & the device supports Serial TTL or I2C.

Looking at their documentation the layout of the ports fits the above device.

Sensor alone was circa $80.00 AUD.

Even sitting in my office on the desk, the device is extremely responsive.

Cheers.
« Last Edit: August 24, 2020, 06:04:32 PM by Phil23 »

Offline johnd

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #8 on: August 25, 2020, 09:02:58 AM »
I'll take a punt & guess it's based on a Sensirion SPS30.

I think probably Planform rather than Sensirion (unless Planform have Sensirion inside eg as an oem, but I doubt that).
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Offline Phil23

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #9 on: August 25, 2020, 04:27:11 PM »
I think probably Planform

Do you have a link for that?

Google is coming up a bit blank.

Not meaning the Plantower?
https://www.google.com/search?q=particle+air+sensor+modules+plantower


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Offline johnd

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #10 on: August 25, 2020, 04:44:25 PM »
Sorry, yes, Plantower was what I meant! Trying to do too many things at once!

FAOD it is definitely Plantower - it says so on the inner cover for the sensor module
« Last Edit: August 26, 2020, 03:45:49 AM by johnd »
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Offline Phil23

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #11 on: August 25, 2020, 05:25:28 PM »
I think probably Planform rather than Sensirion...

I'm taking a wild guess for course; not a lot to go on from those images.
The only real references are the power plug. Not much in the coffee table image.
Edit, Other reference is the timber post, which could be guessed as a 4x4".

Two of the specs that can be lifted directly from the Sps30 data sheet are:-
• Accurate: Measures particulates as small as 0.3 micrometers with an accuracy of +/-10 micrograms per cubic meter in concentrations.

When I received my first sensor, it's small size surprised me, 40x40x12mm.
Tiny compared to the other ones I've acquired.

The thing that jumped out at me though when I saw the first image without the cover was the similarity in the layout to one of the images in the application notes on their site.

This one.

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Edit.

If that's an Amazon Echo sitting beside it on the table etc in the linked page, that would be an 88mm wide reference.

https://www.weatherstations.co.uk/wp-content/uploads/Airlink-indoors.jpeg

But again, I'm just making wild guesses.
« Last Edit: August 25, 2020, 05:53:08 PM by Phil23 »

Offline waiukuweather

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #12 on: August 25, 2020, 05:37:41 PM »
is there a link somewhere to the api for this new sensor? :)

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #13 on: August 25, 2020, 06:14:20 PM »
is there a link somewhere to the api for this new sensor? :)

not sure where but Mark (AKA mcrossley) has the api documentation apparently. https://cumulus.hosiene.co.uk/viewtopic.php?p=145867#p145867
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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #14 on: August 25, 2020, 06:33:03 PM »
I'm also guessing this really isn't a Davis device since I cannot see this listed on the FCC's list.

Last two devices listed are:

IR2DWW6805 2019-06-26 Weather data gateway with Wifi/Ethernet interface (EnviroMonitor IP Gateway)
IR2DWW6100 2019-06-26 Weather data receiver with Wifi/Ethernet interface (WLL)

I even used the Search of the FCC database but these are the last two devices submitted for FCC approval by Davis Instruments.  the only other thing is it is awaiting approval, but usually you still see the device listed on the FCC website.

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« Last Edit: August 25, 2020, 06:35:47 PM by ConligWX »
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Offline vinceskahan

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #15 on: August 25, 2020, 08:13:07 PM »
Airlink uploads directly to weatherlink.com, but is fully independent of any local Vue or VP2 stations. IOW the only data integration happens at weatherlink.com.

Data should be available via the v2 API of weatherlink.com and there will also be a local API.

Do you have a pointer to the local API for this, even if it's in draft form ?

One thing that concerned me with WeatherLinkLive is that you can't get all the information locally and rapidly.  It seems to permit enabling wind reports via UDP broadcast, but there didn't seem to be a way to enable LOOP data via UDP for the other sensors.  Seemed a little half-baked to me.


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Offline waiukuweather

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #16 on: August 25, 2020, 11:39:32 PM »
wind and rain data is data that changes most often
so that is available via UDP at a fast rate without having to keep on requesting it
all other data is still available from the WLL bridge via HTTP GET

Offline hmderek

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #17 on: August 26, 2020, 04:39:47 AM »
Being dependent on their API to retrieve your own data would be an unfortunate limitation.
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Offline johnd

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #18 on: August 26, 2020, 05:04:08 AM »
Being dependent on their API to retrieve your own data would be an unfortunate limitation.

How else would you access data from a digital device except via an API? And usually it's the manufacturer who writes the API for their own device - not sure how else it might work?
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Offline weather34

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #19 on: August 26, 2020, 05:54:41 AM »
Being dependent on their API to retrieve your own data would be an unfortunate limitation.

How else would you access data from a digital device except via an API? And usually it's the manufacturer who writes the API for their own device - not sure how else it might work?

it would not be that difficult to sniff the data in one or other if its over a local network i.e home router etc..but for now just have to wait till we can get our measly hands on one.. fwiw made my day when i saw this announcement in Davis we trust..

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #20 on: August 26, 2020, 05:58:50 AM »
it would not be that difficult to sniff the data in one or other if its over a local network i.e home router etc.

True, but surely you would still have to either know or to reverse engineer the API to make any sense of the data. (Really I'm just quibbling with the idea that an API is unnecessary  :-) )
« Last Edit: August 26, 2020, 06:20:01 AM by johnd »
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Offline weather34

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #21 on: August 26, 2020, 06:05:57 AM »
api is necessary it serves a wider audience and is a benefit however those that know if its sending data over your local network via wireless or lan then its not so difficult to capture that data . but for now we can only assume and that is never a good thing only time will tell . boris at meteobridge is already trying to source further info , i have ordered one through my uk friend but you know how it is for us in turkey so late november  is more of a likelihood for me .

Offline galfert

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #22 on: August 26, 2020, 06:49:08 AM »
Being dependent on their API to retrieve your own data would be an unfortunate limitation.

You will not be dependent on the API to retrieve your own data. You'll be dependent on the mobile app or the Davis website. But because of the API other developers will be able to leverage the API so that they can provide you other solutions to have at your data. I'm not sure what else you are expecting.

Before networked IoT devices were common, geting data via USB was common. But that too required the manufacturer to provide the compatible software application. And likewise 3rd party developers made software to understand the USB port data output.

Nothing has changed. You want data and you need to either use what the company provides or rely on a developer to provide an alternative solution.

So what are you asking for? I don't understand your comment.
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Offline hmderek

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #23 on: August 26, 2020, 07:19:58 AM »
Being dependent on their API to retrieve your own data would be an unfortunate limitation.

How else would you access data from a digital device except via an API? And usually it's the manufacturer who writes the API for their own device - not sure how else it might work?

We I see API, I assume we mean an HTTP request to a Davis/Weatherlink server. This means you need a connection to the internet to even store your data, as well as retrieve it.

Considering your reply, are we then talking about accessing the internal storage of the device rather than a server request?
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Offline johnd

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Re: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10
« Reply #24 on: August 26, 2020, 07:28:55 AM »
We I see API, I assume we mean an HTTP request to a Davis/Weatherlink server. This means you need a connection to the internet to even store your data, as well as retrieve it.

Considering your reply, are we then talking about accessing the internal storage of the device rather than a server request?

Airlink makes data available in two distinct ways:

1. It uploads to a station at weatherlink.com and the data can then be accessed in the usual ways via the Weatherlink phone app or the browser app and with current data free, but past data subject to a Pro plan;

2. There is a local API whereby any local device can make an HTTP request and receive a snapshot of current data. As far as I know there is no local data storage in Airlink (ie the equivalent of archive or logged data) so a local API request will just return the set of current readings. Any local data storage will need to be done by the requesting device.
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