Just for Interest…
I have just Installed a new Davis WMII weather station here, great deal from the local auction site
Anyway there is always lots said about the gust measuring capability of the LaCrosse ws23xx stations and the Davis stations so as a test they are both running here and I have put up the graphs from both stations together on one page… Davis on the left LaCrosse on the right…
So far it looks like the LaCrosse is actually catching the gusts well… but only tested at lower speeds so far, and it is actually slightly better at getting the really light puffs of wind…
Should be some stronger winds here over the next couple of days with the remnants of cyclone wati set to pass nearby
While I think it’s impossible to really tell without wind tunnel tests…
I’ve been watching both mine for the past 15 minutes or so. They’re in different locations (which can make a big difference).
What I noticed is that both give good indications of direction. Wind coming from the N - NE. The big difference was gusts. With the VP2 updating every 2.5 seconds, it easy caught gusts that the LaCrosse missed. Otherwise, they seems pretty close.
Temperature… both work very well… within .5F of each other virtually all the time.
Baro Pressure… I’m still calibrating the VP2 but both respond equally well. The VP2 is in the console, so it gets some kudos for better protection from the elements.
Rain gauge… hands down the VP2s is better. In fact, the other day we had snow that melted. I showed .15 inches and the local METAR showed .15 inches. The WS-2310 showed .00 inches.
Humidity… LaCrosse is fine in a range… say 30 to 70% but get outside that and it’s horrible at showing the correct humidity. Davis tracks every good versus the local METAR.
Where it really shows… quality of components. Once you take the Davis out of the box, you know it was built for outdoor use. Everything is heavy grade plastic and steel. The LaCrosse has such horrible wiring that it’s almost universally replaced by owners. The only thing Davis owners replace is the occasional battery.
All that being said, again I think the LaCrosse is a good low-cost station with noted limitations.
Yes I really like the build quality of the Davis and the much higher quality humidity sensing element they are using in the outdoor sensor… the update speed is fantastic
Well it should be a bit like a wind tunnel here today with galeforce winds expected later!, so those graphs will be a good test of gust recording ability I have a funnel on the LaCrosse so it reads 0.15mm tips instead of 0.5
Hi Ricky.
how can you run both weather stations in the same time with Weather Display.
Thanks.
Easy one is a trial version.
Coyote
Yep, thats it running a second copy… just installed in another folder, with the 2wd.txt file that’s been mentioned elsewhere here to make the second (or 3rd etc) copy use a new wdisplay.ini and registry key…
Thanks for that comparison, it is very interesting. I am a 3600 user and have just ordered a Davis V Pro 2. I’m sure I have made the right choice … should have just bought a Davis first up, would have saved alot of headaches.
just a follow up, once Ricky got some stonger winds, the Davis WMII outdid the la crosse
Thanks for posting this. I’ve been considering upgrading from a Lacrosse 2310 to a Davis VP 2, and this is the kind of info I was looking for. I’m actually quite impressed by how closely the Lacrosse matches the Davis. That said, the Davis clearly does a better job at recording wind gusts, but it’s not a huge difference by any means. Temperature readings are very close and so is the rainfall; and even the humidity of the Lacrosse is more accurate than I expected it to be, aside from the limited range.
I find this interesting in that, for the most part, both stations have an equal chance of being accurate; yet people will of course claim that the Davis is more accurate. The Davis does have a clear advantage over the Lacrosse when it comes to wind gusts, because of its higher sampling rate. The accuracy of the Lacrosse looks fine otherwise, and I know from experience that it does a good job of recording very light winds.
After looking at this, I’m not sure I want to spend all that money on a Davis system, along with having to buy the hardware to connect it to a PC. I know that Davis is more durable and better in some aspects… but I have heard of issues with solar radiation temperature problems due to keeping the ISS in an exposed location. What I like about Lacrosse is that you can site the rain gauge and temp/hum sensor separately. For wind readings, I’ve been thinking about using a 1-wire wind gauge in combination with my 2310, for improved gust readings. I read something about converting the Lacrosse wind gauge to 1-wire… is there a tutorial for this posted anywhere? Might also get a 1-wire sensor for improved humidity range…
I will agree the Davis is probably a better choice for someone who does not want to mess around this much… and I would probably have one if money was not an obstacle. However, if I can make what I have almost as accurate by spending a few dollars, then perhaps I needn’t worry.
using a 1 wire windspeed or vortex (easier to setup) windspeed is a good idea, with any weather station that has slow windspeed sampling
Can I convert the actual Lacrosse gauge so that it can be connected as 1-wire? I haven’t heard much about Vortex…
Well I guess this is as good a thread as any to post…
My Station Profile has changed :greenjumpers:
After almost two years I have graduated to a Vantage Pro 2 with FARS
All the begging, pleading and promising finally worked and “The Boss” said OK
Don’t get me wrong the La Crosse has done a jam up job, with some work and tweaks but that is the nature of the beast. it isn’t retiring completely as i am hooking it up to The Bosses computer for comparisons, sanity checks and as a backup…
WOW the VP is big LOL
I have it mounted where I originally planned on the La Crosse installation which proved to be too exposed for proper temperature readings…
WD is back up and running with VP data and so far so good… HOT Dang !
-Bob
I just installed the vortex today with my 2310 - WOW that was one of the easiest things I have done. It was almost plug and play with WD. I hadn’t heard of it until this week and I made the right choice.
HEY BOB, congrats. I know you’ll like it. Welcome to the world of VP2s.
–Dave
Good job Bob, you deserve it
Wasn’t it earlier this week you told me the boss wouldn’t let you get a VP 2 LOL
Congrat’s
Better hurry before she changes her mind LOL
Coyote
The second she said yes it was ordered, had the check out page sitting in my browser for over a week…
The New station is fully operational and so far so good and the difference in quality is evident from the moment you lay eyes on it…
I got the 6153 cause I knew I needed FARS but am not sure about Solar or UV as I wasn’t sure of where i was gonna site it, one location would make solar and UV all but useless… I can add a Solar in the future if i decide to for about $110.00 so as you can’t buy a VP2 with just solar figured what the heck get the one that was easier to sell to The Boss… LOL
-Bob
Congrats Bob!
Should have got the more expensive one… was talking to the boss about the UV sensor… and the talk didn’t go anywhere. #-o
The solar and UV is the only disappointing thing to me. Unless you have a completely open area it’s not easy to mount the ISS properly for temp and rain and get exposure for the solar and UV. In my opinion, it would be better to mount them with the anemometer. It at least is going to be at a higher elevation. However, would never go back to the 2010 for anything. Glad you got the station.
–Dave