This document introduces the PTZ-35 MS and PTZ-50 MS thermal imagers produced by FLIR. These thermal imagers can be used for security and surveillance applications. They feature high resolution, clear thermal images, and advanced thermal imaging software. These imagers can be integrated with white light/low light cameras to provide sharp and clear thermal images. They have a compact and lightweight design, suitable for harsh environments, and can be integrated with existing CCTV systems through various installation methods. Thermal imagers have wide applications in security and surveillance.