Edwards EST 5520D-AW Duotronic Signal Horn / SirenThe Edwards 5520D AW Duotronic Signal Horn Siren operates on 20 24VDC, . 35amps power. dBA Rating at 10 ft: Horn 114dBA Siren 112dBA Includes an "Adaptaplate" that mounts directly on walls, or on any single gang opening. It also mounts to 3 1 4" (83mm), 3 1 2" (89mm), 4" (102mm) octagon, 4" (102mm) square boxes, or equivalent fittings. The signal may be weatherproofed using the Edwards Cat. No. 349 back box.
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Edwards EST 5520D-AW Duotronic Signal Horn / Siren