Its a Fyrite Pro 125...comes with case, Printer, and smoke tester...
500 + shipping
I don't consider 1200 dollars a cheap piece of equipment. http://www.google.com/products?q=Fyrite+Pro+125+printer+&hl=en&aq=f O2 sensors only last about a year weather you use the tool or not.
Actually Jon is right, the true cost of a combustion analyzer is in the replacement of cartridges or service. If you buy a $300-$900 combustion analyzer expect to pay a few thousand over years of ownership. Not to mention anything less than $900 (new prices) JJ