We were recently tipped off about a new temperature sensor board for the Raspberry Pi.
The Raspberry Pi Temperature Controller by Robogaia Industries uses a thermocouple, which you can see as the green cord in the image above, to sense temperature around the board. It also includes two motor drivers that can be used in conjunction with temperature sensing. The Pi’s IO pins are pulled through for easy access, as well.
The Kickstarter was successful, so you can pre-order one from the kickstarter page for $49 or purchase a partially assembled version for less.