Weatherproof with extended temperature range of –40°F to 150°F (-40°C to 66°C)* Dual Listed strobe models (UL 1638 and UL 1971) Industry’s highest strobe candela options Synchronize using the Wheelock Sync Modules or panels with built-in Wheelock Patented Sync Protocol Models with field selectable tone, dBA and candela settings Wall or ceiling mounting options Surface of semi-flush mounting IN/OUT wiring termination accepting two #12-18 AWG wires at each termi