Well That Didn't Help

 A couple of days after replacing the "Super Capacitor", the temperature and humidity readings are still dropping out intermittently.  Mostly at night, but this morning they stopped for an hour or two after sunrise, though I think it was mostly overcast.

So I wondered if the ISS battery was really OK.  Weewx reports "signal quality" of the ISS and actually graphs it, and I wasn't seeing any issues.  It also reports a "Battery Status" in real time (at the 2.5 sec update rate, though web page only refreshed every 5 minutes.  It normally reports just as "OK".  I assume if there is an issue, it would report "Not OK" or something similar.

Then today I spent some time trying to figure how to know if the Battery Status ever was not OK, like in the middle of the night.  I didn't think so, but wanted to know. I search through some logs, but didn't see any battery issues.  Then I did some searching in the Weewx Google Groups pages, and eventually saw that one could make Weewx create an alarm send an email if battery was ever low, or not OK.

That was not quite so easy.  It took me several hours to get it working, but I believe it will now send me an email if the ISS battery level drops below OK.

One other bit of information that really should answer the question, is that it appears wind speed and direction is still being reported.  A least it was yesterday.  Today shows no wind speed, but maybe it is just calm, or very low.  I don't think the anemometer works great below 5 mph.

Then tonight, just after dark temp and humidity have stopped reporting.  It is looking like maybe it is just a temp/humidity sensor issue.  Looking on line, I see some people say they have to replace them every 3 or 4 years.  I'm at 15, so maybe I'm lucky?

The Vantage Pro 2 is supposed to be one of the best personal weather stations.  I have had quite a few issues with mine, and it looks like I will need to spend some more to keep it running.  The Temp/Humidity sensor is $60.  Parts to replace anemometer bearings are not available for my vintage unit, so a whole new one is $184 as of today.  A complete weather station from Ambient that has similar features is less than $200.  The vantage Pro 2 updates readings more often, and it has a better wireless transmitter.  But it is not a bulletproof station.  It needs regular upkeep and parts will fail.  Another option is to buy a slightly lower cost Vantage Vue ISS only.  My console will work with it.  It's around $300.

A different station will mean doing some updating to make it work with Weewx.  Maybe I could sell the Vantage Pro 2 console and logger/pc interface.

Maybe I'll just buy the sensor and hope everything else lasts a few more years.