The testo 890 thermal imager with super-telephoto lens means you are ideally equipped for professional thermography involving long measuring distances: e.g. for inspecting high-voltage lines even the smallest of connections can be thoroughly checked from greater distances. You can also pinpoint hotspots on defective cells in large solar parks or visualize irregularities in large industrial plants (e.g. in refineries).Testo 890 professional thermal imager: resolution 640 480 pixels, upgradable to 1280 960 pixels with Super Resolution technology, thermal sensitivity < 40 mk.Super-telephoto lens with a 6.6 x 5 field of view for the accurate recording of extremely distant objects.Sequence capturing in the instrument a possible option, humidity calculation, Site Recognition, panorama image assistant, JPEG storage function and other practical features.