This is a thermopile sensor for contact-less measurement of temperature.
There is a sample code for usage with pymlab Python library and USBI2C01A module:
from pymlab import config #### Sensor Configuration ########################################### cfg = config.Config( i2c = { "port": 0, # I2C bus number }, bus = [ { "type": "i2chub", "address": 0x73, "children": [ {"name": "thermopile", "type": "thermopile01", "channel": 4, }, ], }, ], ) cfg.initialize() sensor = cfg.get_device("thermopile") #### Measurement #################################################### while True: print "Ta ", sensor.getTambient(), " To ", sensor.getTobject1()