This sensor works best with objects that are good emitters of infrared radiation. The ideal emitter is a completely non-reflective surface or "black body". Black anodized aluminum or cast iron are pretty good emitters. Polished metal surfaces are very poor emitters, but can usually be turned into a good emitter with a bit of flat-black paint.
The TMP006 works with 3v to 5v, so it can be used with most microcontrollers without the need for a level shifter. It connects via the i2c bus and is addressable so you can have up to 8 TMP006 sensors on the same bus.