Marine sound signal/marine bell, IP56 Voltage:24V/110V/220V Sound intensity:86dB Marine sound signal/Marine bell 1. Suit environment temperature: -25oC--+55oC2. It can reliably work when the power voltage with ranges within ±15% for DC current, +6%- -10% for AC current of its rated voltage, and its sound intensity will not lower than the value stipulated.3. Protection class: IP56Specification:DC ...