There are already couple of threads here in DB about both Aqueon (the original) and PowerSwim (the rip-off). Just enter the words into the search box above and you'll get much more detailed information about it. The following one is probably the best, but there are more of them, so why not continuing the discussion there instead of starting a new thread?
http://forums.deeperblue.net/freediv...ghlight=aqueon
If you feel like others that DEKRA does not deserve the +2 millions of dollars DEKRA received for the "research" (I mean the rip-off of Calvin's invention), and that it is strange to market the device (they alegedly sell it for ~$500) without paying the inventor, or without even mentioning him on their website, do not hesitate to write to responsible authorities at DEKRA, or Pentagon and ask them an explanation. I did, but so far got no reply.
More about Aqueon and PowerSwim also here:
aqueon @ APNEA.cz