I've got the components for one more Kenometer. The Kenometer is a Coherent surplus board and sensor assembled using Dr. Lava's hack to make a functional meter. Buyer pays shipping (whatever method desired) as real shipping costs not elevated shipping. What it costs me is what it costs you. $250 + shipping
I can hook up data logging but it's just a usb DMM that reads the output from the board, which is 1mw/mv and sends it to the computer. Graph looks like this.


There is an additional cost for the USB DMM I buy them for $69 but only charge $50 ($300 with datalogging)

1 Yr warranty against defects.
Benefits:
1. True Coherent Thermal Head
2. Can read up to 2 Watts with included display and up to 10 Watts with external DMM. 1mw increments.
3. Zeroing Pot for ambient temp adjustment.
4. Compact non-portable desk profile. (can be portable just runs off mains)