IR sensor

DrAzzy,

First- thanks for the quick and kind reply. It makes a newb feel good about choosing to know that the community is open and receptive.

Regarding writing the module- I have purchased one of the sensors, and plan on getting the other once I get something working. I contacted the manufacture and was told they would get back to me on the 10th. Given the message I got was in Japanese I am not so sure how well the tech support will be. With that in mind, is there any way you could be more implicit for "the datasheet that explains how to talk to it over I2C"

Here is what I can find that seems like what you are looking for:

Output specifications: Digital values that correspond to the object temperature (Tx) and reference temperature (Ta) are output from a serial communications port.
Output form: Binary code (10 times the detected temperature (°C))

Also I have found the following documents:
Specification:
https://www.components.omron.com/components/web/PDFLIB.nsf/0/FF9EBCACCEA85DCD86257A4F005D00A4/$file/D6T_1112.pdf
Application note: This seems to have the information you are looking for on page 8, table 6: http://media.digikey.com/pdf/Data%20Sheets/Omron%20PDFs/D6T44L_8L_Appl_Note.pdf
How to read dates: http://media.digikey.com/pdf/Other%20Related%20Documents/Omron%20Other%20Doc/Omron_Date_Code.pdf

Thanks, yes the cost is certainly attractive, about $50 that is. For my application I am measuring phase change materials in buildings and the loads that effect them and am making a wall mounted unit that contains one of the "square" view sensors facing the zone to sense occupancy and one "rectangle" view sensor that is faced sideways towards the wall. Also, the devise shall have other sensors such as pressure + temperature, humidity + temperature, light, motion, CO2, surface temperature, and heat flux. From what I gather I will need to write a module for each of these if there is not already a module in place. With a 3d printed hexagonal case I think it should cost less then $500 in parts and sell for about $1,200 per assembled unit.

I code a bit, but also have some programmers I pay to work on a node.js project and am looking to understand what I am asking for and how much work I need to plan on to make this product a reality.

Thanks for any help or comments--

Kindest of regards