The TH12 is an internet connected low-power wireless temperature and humidity sensor. It uses 2xAA batteries and has 3 to 5 years of run life with the standard configuration parameters.
The TH12 uses 6LoWPAN and RPL to autoconfigure a globally routeable IPv6 address. Once connected, you interact with it using CoAP, a RESTful UDP based protocol.
This software is based on the Contiki Operating System and is released under the same open source license.