My first Ruuvitag, sitting outdoors, has given up,
it now shows all the time approx. 9-10% RH too much.
It started in winter when I discovered it was 100% RH.
I took another Ruuvitag and placed next to it.
Changed the batteries between them, but no change.
Had them indoors for 14 days but no change.
I have a picture from May, where it still shows
100% RH at night.
So now comes Espruino on it, and a sensirion sensor
Purchased on 30/6-2017
Hello,
Thanks for the data. Just to clarify, was the tag originally giving you good values and has the humidity sensor gone bad later? Was it a sudden event, or has it been a gradual shift?
It has worked fine until this winter.
I became aware of it as the view in my greenhouse
was below 100% RH, and it felt more humid than
outside.
Unfortunately, I can’t go back beyond March,
when my raspberry gave up working on wireless wifi.
I tried with a new image, with the same result, so
now I run the wired network.
Thanks for the additional details. Bosch is currently investigating a few units with similar symptoms in their laboratory, we’ll inform them of your tag. Please keep the tag for now in case it is needed for the failure analysis.
I will do. Thank you.
I have similar issues.
@otso Do you want me to send you a malfunctioning tag.
Maybe this information will add some insight FAQ:-Temperature,-humidity-accuracy
Thanks for the offer, the lab has enough units for investigation for now. Please keep the tag for now, we’ll know more about the issue in next few weeks.
I have taken my ruuvitag out of service and taken out the battery, put it in a box with another ruuvitag that measures temperature and humidity.
The temperature is between 20 and 22.5 degrees Celsius and humidity is just under 50% RH.
They must be there 1 week to see if my ruuvitag will rehydrate.
Then it was that I found that the ruuvi station on the iphone shows +00:00 while my android shows GMT + 02:00.
Hello,
The clocks are now shown same way in iOS as in Android, the update is in next few releases. Thanks for the report.
@otso
Anything new from Bosch?
Hello,
So far we haven’t been able to find a root cause for the high offsets in some devices. Please contact sales@ruuvi.com, link this post and we’ll figure out the next steps
I just tested my outdoor sensor, with one of the new sensors I’ve got. It doesn’t draw well.
My outside sensor is “name: Test1”. which I replaced with the original outdoor sensor.
The new sensor that I got the other day is “name:”.
They are located next to each other.
The next thing I want to test is my sensor in the greenhouse. I have the feeling that it has also gone whistle.
To me it looks like they can’t stand being over 80% RH for a long time.
So I can’t use them in my automation as I can’t trust them.
Hi Frida,
I am not sure if I understand last one (and previous) correctly. RH in greenhouse is between 87-90% but what is the level you are comparing it?
I got some new ruuvi tags, of which I have taken one of the new ones, and first I placed it by the outdoor ruuvi tag.
The new sensor has the green color and the name “name:”
My outdoor sensor has the red color and the name “name: Test1”
The new sensor is around 90% RH while the outdoors is at 100% RH.
Then I moved the new sensor to my greenhouse.
The new sensor has the green color and the name “name:”
My greenhouse sensor has the blue color and the name “name: Greenhouse”
The new sensor is around 90% RH, while the greenhouse is at 100% RH.
I have 2 new pictures where I also compare the new sensor with the existing one.
My bedroom seems to be ok.
My bath I think the difference is starting to get too big, the difference is now 5% RH.
Sorry, but I still don’t fully follow the explanation. I also could not find name “greenhouse” but you probably meant “drivhus”?
“the new sensor is around 90% RH while the outdoors is at 100% RH”
Do I understand correctly that you have now placed new sensor also outdoors and old one is showing 100% and new one 90%? Both are close to each other?
If outdoor sensor has been long time outdoor have you checked if there are humidity condensed inside?
I have several sensors outdoors and when temperature has been around +2…13C humidity levels has been between 95-100%. Currently in my greenhouse humidity has been 100% for very long time (closed space, air is not moving) and water also condensed to plastic greenhouse frame.
Yes, “greenhouse” = "drivhus
"
Yes both side by side.
Took both of them to the kitchen table, and opened them, took a picture. There is no moisture on the sensors.
The indoor difference in RH is 8% RH.
Yes, but in my greenhouse, I have forced ventilation that I had hoped to be able to automate with these sensors, but because they deviate too much over time, I can’t trust them.
The temperature difference of 1C is also a bit too much i would say.