Classic Maintained Weatherproof Exit manufactured from high impact polycarbonate to withstand harsh environmental and weather conditions Lithium Iron Phosphate battery including integrated management system to maximize battery life Built-in Sentinel Automatic Self-testing capability Body and Diffuser Sold Separately Conformance: C0 = E1.25 / C90 = E1 Classic Maintained Weatherproof Exit manufactured from high impact polycarbonate to withstand harsh environmental and weather conditions Lithium Iron Phosphate battery including integrated management system to maximize battery life Built-in Sentinel Automatic Self-testing capability Body and Diffuser Sold Separately Conformance: C0 = E1.25 / C90 = E1