Easy to install, Weatherproof, UV proof, 2 pizeo 125 db, 6 tone selectable, metal protection. back up battery Features Easy to install Weatherproof to IP55 Choice of lid and backplate One size backplate for all vertical installations Durable 3mm polycarbonate base Optional SCB mode High visibility xenon strobe Dual flashing comfort LEDsFireSecurityIndustrialRailway/MarineHazardous AreaPublic ...