Zistos has combined thermal imaging and high resolution video in a single, ultra-slim camera head that attaches to any of their extension poles. Optimized specifically for USAR teams, the THC-50D is the only remote dual thermal imaging camera designed to fit within a standard 2-inch diameter core hole — typically used by technical search specialists to breach a void space in search of entrapped victims. Electronic switching between camera types is instantaneous by using the same control that provides variable illumination for the video camera. Instant correlation between the two images allows US&R specialists to conduct searches more thoroughly and expediently.