HA03 is designed to stand up to the demanding conditions faced in IEC60079 Zone 1, 2, Zone 21, and 22 and UL844 standard Class I Division 1, Class II Division 1 environments. Rugged materials and design to ensure resistance to extreme environments and tough conditions. Applications are chemical and oil, gas and petrochemical, power plant/heavy industrial warehouses, paper mills, loading dock & platform & shipyard plants, processing equipment plants, and waste and sewage treatment plants.