Corentium Canary Radon Detector

Thanks for letting me know about Greenshot, I'll give it a try

Here's a screenshot using Greenshot

A few more days worth of data. There is 24/7 ventilation into the apartment via an open window in the room next to the Room where the Canary is so I expect the Radon levels to average out at a low level during the coming Summer months.

An update to show the radon levels this past week during a period of mixed weather.

In contrast to last week's graph, breezy conditions increased the radon level in the apartment

Another week's worth of data. What has caused the increase in radon these last few days, I have no idea. The weather hasn't changed and neither has the ventilation in my apartment, or the use of the various basement rooms.

I'm hoping that during the next month or so to have exclusive use of one of the basement rooms. This means that I can set the Canary in there without fear of theft. I would then take daily readings over a period of at least one month. The radon level is much higher in the basement than in my apartment (thankfully!).