Mostly made by Aosong. Here is the datasheet. Libraries are little rare and seems to be bit old. But this one on GIT is working fine.  The library has been attached here also in case the GIT one is not available for any reason.

There are example codes in the library. Wiring the module is pretty simple.

The module works on 3.3v – 5v and uses I2C for communication.

As per the datasheets the module will malfunction under harsh conditions and contamination. But it may recover if left for sometime.