The part number GNExS1FAC230(A)(B)(1)(A)(1)(R) (also parsed as GNExS1FAC230AB1A1R or GNExS1RAC230AB1A1R) refers to a commercial flameproof alarm horn sounder manufactured by E2S Warning Signals. It is constructed out of glass-reinforced polyester (GRP) and is engineered for use in hazardous, explosion-prone locations (Zone 1 & Zone 2).
