This is a thermopile sensor for contact-less measurement of temperature.

There is some sample code for usage with pymplab 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()