Model HLE-1T is a explosion-proof compression driver engineered for high-efficiency voice and electronic signal communication in hazardous areas. The driver is protected within a rugged die-cast aluminum housing equipped with 1/2" conduit access and an adjustable mounting bracket. Optional projector horns are available in two styles to meet dispersion requirements. Model HLE/MLE-30 is a high-quality, polycarbonate projector that creates a 120 ° x 60 ° pattern for wide area coverage. Model HLE/MLE-32 is a spun aluminum bell providing a 95 ° circular distribution emphasis.