The Optris thermal camera portfolio scales from industrial Xi models for stand-alone, fixed installations with direct I/O alarming to PI thermal imagers for PC-connected analysis, multi-camera setups, and high-speed workflows. Application-matched variants cover LWIR for general surfaces, glass-specific models, and short-wavelength options for hot or reflective metals to minimize emissivity and glare errors. Multiple resolutions and frame rates capture both slow thermal drifts and fast transients, while low NETD reveals subtle gradients and early hot spots. Interchangeable wide, tele, and macro optics ensure proper pixel fill for stable, repeatable readings.