You might also be interested in http://myriota.com/ http://myriota.com/ It's essentially a long life "tag" (10 years depending on duty cycle) that can read sen

You might also be interested in http://myriota.com/ http://myriota.com/ It's essentially a long life "tag" (10 years depending on duty cycle) that can read sensors and go direct to satellite. Funded by Boeing. I'm not involved in the company, but in the last 20 years have regularly crossed paths with one of the founders at Information Theory conferences. He's a very smart guy.