Hi Ann, To what do you compare the air pressure reading of your Netatmo in order to say it's too high? I just checked mine and it currently reads 1,023 millibars. when I open the Weather Office app which gives me the current conditions from our official Environment Canada weather station which is located at the airport (maybe 5 Km away as the crow flies) it gives me 102.2 KPA (kilo pascals) which would be 1,022 Millibars, so only a 1 Millibar or 0.1 KPA discrepancy. I have looked at this from time to time and rarely find that there is much more than a couple of Millibars of a difference. Of course one has to keep in mind the elevation where you are and the elevation of the official weather station if that is what you are comparing it to. Air Pressure changes with elevation which is how barometric altimeters work, you calibrate them by going to a location with a precise known altitude like an airport and set them, then as you do activities in the mountains you can get precise altitude readings. If you compare to an official weather station which is slightly higher or lower in elevation then I would exist a consistant difference in air pressure reading from Netatmo.
As for humidity, I think that is also effected a lot by local micro changes and also the location where you put your outdoor module. You should not have it exposed to the elements like rain or direct sunlight, but at the same time it should of course not be in a place where maybe there is not much airflow. It's now 9:09 AM and the last update on the official weather station was at 9 AM and it shows 40% humidity and 12 degrees Celsius, my Netatmo shows 49% humidity and 10.2 degrees. It still gets cold at night some nights, this morning at 7 AM it was only 1 degree at the airport, at 8 AM it was already 8 degrees, now at 9 AM it's 12 degrees and we are supposed to get a high of 23 or 24 degrees this afternoon with not a cloud in the sky, not too bad for northern BC in mid May, thanks El Ninio! All in all I think that Netatmo is a good product, well made and it seems accurate enough. Regards, Sieghard -----Original Message----- From: viphone@googlegroups.com [mailto:viphone@googlegroups.com] On Behalf Of Ann Byrne Sent: Saturday, May 14, 2016 8:43 AM To: viphone@googlegroups.com Subject: Re: Netapmo weather On our station, the air pressure is consistently about .8 inches too high. I don't know about the humidity. At 10:18 AM 5/14/2016, you wrote: >Hi, > >I am considering the purchase of the Netapmmo weather >system. According to the Amazon reviews it seems many units do not >come calibrated to accurately measure air pressure and >humidity. Some of these are old comments so I was wondering if >people on this list would be willing to share their >experience. It's a mighty expensive product so I want to make sure >it's a good, durable, reliable product before buying it. > >Thanks.itg. > >-- >The following information is important for all members of the V iPhone list. > >If you have any questions or concerns about the running of this >list, or if you feel that a member's post is inappropriate, please >contact the owners or moderators directly rather than posting on the >list itself. > >Your V iPhone list moderator is Mark Taylor and your owner is Cara >Quinn - you can reach Cara at caraqu...@caraquinn.com > >The archives for this list can be searched at: >http://www.mail-archive.com/viphone@googlegroups.com/ >--- >You received this message because you are subscribed to the Google >Groups "VIPhone" group. >To unsubscribe from this group and stop receiving emails from it, >send an email to viphone+unsubscr...@googlegroups.com. >To post to this group, send email to viphone@googlegroups.com. >Visit this group at https://groups.google.com/group/viphone. >For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the V iPhone list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your V iPhone list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/viphone@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to viphone+unsubscr...@googlegroups.com. To post to this group, send email to viphone@googlegroups.com. Visit this group at https://groups.google.com/group/viphone. For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the V iPhone list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your V iPhone list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/viphone@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to viphone+unsubscr...@googlegroups.com. To post to this group, send email to viphone@googlegroups.com. Visit this group at https://groups.google.com/group/viphone. For more options, visit https://groups.google.com/d/optout.
