The Sure-Lites UX Nema 4X Exit combines the strength and durability of die cast aluminum with architecturally pleasing aesthetics. Designed for the most severe environments, the UX exit will provide maximum performance against rain, moisture, cold, corrosives and dust. Universal configurations (single and double face) and universal mounting provide the ease of one product specifying for any job. Additional designed-in features such as self-diagnostics, photocell testing, LED technology and nickel cadmium battery provide the customer with a long life, low maintenance, dependable exit sign in those conditions when reliability is crucial. The injection molded, clear, polycarbonate shield not only provides protection against moisture and rain, but vandalism as well. (4) Torx® head tamperproof screws with center-pin reject provide additional vandal proof security. The unique design and features make the UX Exit compatible in food processing facilities, outdoor parking garages, walk-in freezers and other indoor/outdoor severe environments. The UX Exit is approved for ambient environments rated from -45°C (-49°F) up to +60°C (+140°F).