Edwards WG4WA-SVMHC 29/01 using a single pair of

using a single pair of wires

It is UL 1480 listed as a fire protective signalling speaker

200F ROR Dual Normally Open Heat Detector

and audible bases

Edwards WG4WA-SVMHC 29/01 using a single pair ofGenesis WG4 Series speakers and speaker strobe appliances are among the most versatile emergency appliances of their kind. 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 31F to as high as 151F ( 35C to 66C). Field configurable light and sound output settings add to their on site flexibility, while optional FIRE or ALERT markings and colored lenses