Hello
I agree with Mr. Tajbakhsh. It's a little bit difficult to distribute probes without power supply and specially a catalog. Also There is no centralized and updated information, presentation, catalog in ripe atlas website.
Yesterday I was searching for a presentation about RIPE Atlas but there were a few and all of them were not update.
volunteers have to pay about 6$ to the post office and about 2$ for the power supply and also 2$ per month for bandwidth, they need to know what do they get in return.