PERFORMANCE PARAMETER: -------------------------------------------------------------------------------- Sound Rating: 120?dB(C) @1M Output Frequency: 600?0Hz Effective Range : 1.5km diameter Dual Tone Net Weight: 9Kg Carton Size: 45x37x58CM DESCRIPTION: -------------------------------------------------------------------------------- LK-120 is designed to provide effective warnning in applications where there is no power supply such as: Civil defence. Camp sites. Mountain rescue. Frontier sentry and coast guard warning. As lightweight, it can be easily transported to remote locations and folds up to a small size for ease of handling.