Duplo The Duplo is a powerful motor driven siren which produces a very high sound output despite its physically compact construction. With its weatherproof design, the Duplo can be used both indoors and outdoors for general safety warning. Due to its rugged construction, the Duplo be used in arduous conditions including mining and quarrying applications. Applications - General safety warning; conveyors; process control alarm; vehicle alarm High output siren sound (127dB) Rugged construction for use in all environments Long life and run time Weatherproof to IP65 Mounting bracket for ease of installation Audibility (tone) at 1m (typical) Current (tone dependent) IP Rating: IP65 Rating: Continuous Frequency: 1600Hz Operating Temp: -30ºC to +45ºC Construction: Cast Aluminium Body, ABS Rotor, Stator and Cover Cable Entries: 1 Weight: 2kg Signalling Solutions