Product Description Hunter Dual 2 Station Decoder Hunter DUAL-2, 2 Station Decoder: Dual decoders are waterproof, color-coded, and field programmable. Includes 2 DBRY-6 Connectors The DUAL Difference DUAL decoders do not include integrated surge suppression. Instead, install the DUAL-S surge arrestors after every 12th decoder, or 1,000 ft/300 m, at a minimum. In high lightning areas, install more frequently.