Opinions based on my Davis VP2 and Tempest, installed in Alaska. :-)

The Tempest measurements are very close to the VP2 ones. Yes, they do 
weather prediction and can do some corrections, but my weewx instance isn't 
reading those - it's reading the raw observations over the LAN. I *believe* 
I disabled the cloud-based guesstimates in my account, but I could be 
wrong. Has everything except an indoor console for indoor readings, and my 
setup (Tempest and external power option) was under $400. Like all "sniff 
the LAN for data" setups, there's no local backfill for missed data.

You're kind of closer to describing a Vantage Pro 2 Plus and the solar 
anemometer transmitter. The VP2 has consolidated outdoor sensors for 
temp/humidity/rain/UV/solar/pressure and a cabled anemometer, plus a 
console with indoor temp/humidity. (The rain gauge is NOT removable.) I 
also use a Wireless Envoy and Weatherlink to directly read data, rather 
than the newer Weatherlink Live. For me, the $1400-ish price for those 
parts doesn't fit into "affordable", but mine has been online continuously 
since 2007. The Envoy/Weatherlink combination can store quite a bit of data 
- several days worth I believe - so if your weewx is offline it will read 
and backfill when it restarts. Davis also offers extra sensors, including a 
separate rain gauge I believe - that's more cost, but you *could* ignore 
the attached rain gauge and connect a separate one.

The VP2/Envoy depends on weewx for data uploads elsewhere, so as long as 
it's on it works. The Tempest uploads to it's own gateway device, and I 
sniff the traffic and update a second weewx instance. Not *quite* as robust 
but so far no lost data.

Both offer options for external power connections on the sensors. Davis 
uses a CR-123 battery and solar - without AC I get one solid year between 
battery changes, and the battery is in the main sensor unit so easily 
accessible. (Anemometer is powered from the main unit.) Tempest uses solar 
and a built-in battery - I get to about mid-January and the solar panels 
can't keep the unit charged enough to run more than a couple hours per day. 
The add-on external power option (essentially adds PoE) works great and 
will power the sensor for multiple days on 8 AA batteries if needed, and 
with AC power indefinitely of course.

On Tuesday, February 28, 2023 at 10:30:09 AM UTC-9 vince wrote:

> There is a very long 'what station should I buy' forum on wxforum.net if 
> you want to poke around there.
>
> But to answer, perhaps start with a few easy questions in order of 
> importance.
>
> Budget:
>
>    - what is your max budget ?
>
> Site considerations:
>
>    - is a one-device setup (ex: Vantage Vue) ok with you ?
>    - or do you want an anemometer at 10m and T+H sensors at 2m for 
>    optimum readings  (ex: VP2)
>
> Display:
>
>    - do you need an integrated console ?  Color/modern layout ?
>    - or are you willing to do it yourself (ex: display to a Kindle Fire 
>    etc.)
>
> Ability to run standalone:
>
>    - is it ok if the gateway requires Internet connectivity (ex: Ecowitt 
>    gateway's watchdog timers) ?
>
> UV/Solar/Radiation/AQI sensors
>
>    - how important is it ?  Those can get pretty pricey
>
> Inside T+H
>
>    - again - nice to have, or need to have ?
>
> If you can live with the gateway needing Internet connectivity, you can 
> get a pretty nice Ecowitt setup with color console for under $350 or so. 
>  Less if you build your own dashboard setup and display to a Kindle or iPad 
> if you have those around.
>
> If you need true LAN-only, I'd go Vantage Vue and live with the cost for 
> the logger and the Vue not being expandable.
>
>
>

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