The Model 680 combines a rugged amd dependable FID with all the intelligence and special features required to make a unique integrated monitoring solution. The built in data logger and custom database interfaces enable the 680 to bring the power of a relational database into the field.

FEATURES

• Background subtraction
• Max Hold
• Dilution probe compensation
• Internal alarm levels ( Leak threshold )
• Response factors are also supported

NOTE:

We powered it up, and were able to change the display by way of pressing the buttons.  That is the extent of the testing we can do on it, but it's most likely o.k. 

We do not have a case, filter or other accessories for it, and batteries are not included.  It's simply the head and body, as pictured.  We have quite a few power supplies around here, so if we can find a compatible one, we would include it at no charge.

As you can see in the photos, the sheath has been torn.  Nothing within has been cut, however the teflon tube appear to be crushed, so you would have to  fish a new tube through yourself.

It would be as-is, final sale.