FLIR T series are known for their ergonomic bodies. The usability of the T540 is top notch and it is suitable for diagnostic veterinary thermal imaging. We recommend this thermal camera model for the diagnostic thermal imaging of smaller animals, such as cats and dogs. The IR resolution of this thermal camera model is not sufficient enough for the screening of large targets, such as a horse’s back and flank, for instance. Models T860 and T1020 are better suited for the diagnostic thermal imaging of larger animals.