This breakout has a really cool IR sensor from Texas instruments, which can measure the temperature of an object without being in contact. Just point the sensor towards the body and it will detect the temperature by absorbing IR waves emitted. The embedded thermopile sensor generates a very very small voltage depending on how much IR is emitted from the body. It also takes the measurement over an area so it can be handy for determining the average temperature of something.
The sensor works with 3 to 5V logic so it requires no logic level shifting. There are two address pins and this allows you to hookup upto 8 TMP006's to one i2c bus (see the datasheet table 1 for the connections). it comes with a small piece of 0.1" breakaway header so you can easily solder to and use this sensor on a breadboard. Two mounting holes make it easy to attach to an enclosure.
Refer the easy-to-use Arduino library with an example that will have you up and running in 5 minutes. The code can also be ported to any microcontroller with i2c support, the hardest math part has already been taken care of.
Contents and Images taken from Adafruit