The HX-40 is a high mount outdoor detector for mid level to high end applications where reliability and performance is a must. The unique pyro-element developed by Optex provides a multiple pattern detection with 94 high density detection zones and accurate discrimination function for spot temperature changes of moving objects. These features drastically reduce fales and missed alarms caused by severe outdoor environmental changes and provide a wide range of applications. Accurate detection performance is necessary is such environments, and the HX-40 meets these requirements.