RS485 Detectory by electrochimical sensor for nitrogen monoxide detection. Developed for its use with DURGAS™, SIEDEGAS, EUROSONDELCO y SIEMENS CC62P. Nitrogen monoxide is a colorless gas which is formed by a combination of oxygen and nitogen at high temperature. Generated through combustion processes, motors, domestic boilers, incinerators, mining sites, etc... Its one of the main source of urban pollution. IP65. Cable input through PG9 self-blocking cable gland IP67.