The Edwards WG4WA-S is an outdoor speaker. Additionally, this model is for wall or ceiling applications only and has a low-profile design. Field-configurable light and sound output settings add to their onsite flexibility, while optional FIRE or ALERT markings and colored lenses make them ideal for either emergency communications/ mass notification (ECS/MNS) or fire alarm applications. These appliances are suitable for indoor and outdoor applications and are ideal for challenging conditions such as parking garages and process areas. Besides, they are listed for mounting on the ceiling or the wall, and thanks to an ingenious full backplane sealing gasket, can be installed to recessed (in-the-pour/block) electrical boxes. Also, WG4 signals also mount to suitable surface boxes served by raceways. Optional color-matched trim skirts provide a clean, finished appearance. All appliance wiring is accomplish room-side for easy installation. In general, the Edwards WG4WA-S appliance is among the most versatile emergency appliance of its kind. Also, rated for indoor or outdoor use, they are suitable for a wide range of wet and harsh environments with a listed operating temperature range of as low as -31°F to as high as 151°F.