Sadly not a camera I have worked with.
The datasheet is informative and indicates all control is via a dedicated remote control or via the LAND software running on a PC. You would want to check whether the camera comes with either the remote or the software for a PC.
http://www.lirkorea.com/Landinstruments.net%20Website/infrared/downloads/pdf/thermal_imaging_FTI6.pdfIn general TEC Cooled cameras from AGEMA and LAND are decent performers. Not as good as a Cryogenic Cooled camera in terms of image noise, but acceptable.
These cameras are a sort of half way house between Sterling Cooled arrays and uncooled Microbolometers. They avoided the high maintenance overhead of the Sterling Cooled cameras, yet provided lower noise images than the early microbolometer cameras. A 256 x 256 pixel staring Detector array is decent for most tasks. The TEC is a bit of a current hog and, with age, the detector array can suffer Peltier Element outgassing that contaminates the detectors vacuum capsule. The Vacuum can also suffer leakage over time.
If the camera is cheap and comes with a means of control, it may be a decent buy. If it cannot be demonstrated working consider the risk of detector capsule contamination and vacuum leakage. It is by no means a definite, but if it has occurred, the camera is scrap.
If the camera is faulty, you will be on your own if attempting to repair it. The OEM offers Zero support or information.
All older cameras are a calculated risk and you really need to see a picture of them working. Failure to do so can result in an expensive paperweight.
Finally, the FTI6 was designed for industrial process and area monitoring. As such it is basically a box and not really the most portable of cameras. It will happily sit on a tripod but consider how you intend to use it. Sure a portable power pack, laptop and composite video screen may be fitted, but it will end up as quite a lump compared to say a FLIR E4 or E40 (both of which are very capable cameras and can produce 320 x 240 pixel images) Then there is the current sell-off of the Keysight (Agilent) U5855A 160 x 120 pixel thermal cameras to consider. $620 including shipping to many countries.
Think carefully before buying such an unusual industrial camera.
All the Best
Fraser