The TPC-SD8420-B Ultra Series Hybrid Thermal Network PTZ camera combines an uncooled VOx 640 x 512 thermal imager with a 2 MP visible light sensor for cost-effective, long-range surveillance in a rugged all-in-one package. The thermal imager coupled with an athermalized, focus-free lens produces crisp images in total darkness and sees through rain, fog, and snow. The visible imager with a 30x zoom lens, IR illuminators, and Starlight Technology delivers superior video in any lighting condition. The built-in Fire Detection feature identifies a rapid temperature rise and warns of a potential fire. Hybrid thermal cameras let you see the visible and the invisible.